About the Number

128723490

128723489 ← → 128723491

2進数表記:111101011000010101000100010

漢数字表記:一億二千八百七十二万三千四百九十

素因数分解:

2 1 × 3 2 × 5 1 × 7 2 × 17 2 × 101 1

素因数の和:162
約数の個数: 216
約数和(自身を含む): 417666132
約数和(自身を除く): 288942642

約数列:
[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 17, 18, 21, 30, 34, 35, 42, 45, 49, 51, 63, 70, 85, 90, 98, 101, 102, 105, 119, 126, 147, 153, 170, 202, 210, 238, 245, 255, 289, 294, 303, 306, 315, 357, 441, 490, 505, 510, 578, 595, 606, 630, 707, 714, 735, 765, 833, 867, 882, 909, 1010, 1071, 1190, 1414, 1445, 1470, 1515, 1530, 1666, 1717, 1734, 1785, 1818, 2023, 2121, 2142, 2205, 2499, 2601, 2890, 3030, 3434, 3535, 3570, 4046, 4165, 4242, 4335, 4410, 4545, 4949, 4998, 5151, 5202, 5355, 6069, 6363, 7070, 7497, 8330, 8585, 8670, 9090, 9898, 10115, 10302, 10605, 10710, 12019, 12138, 12495, 12726, 13005, 14161, 14847, 14994, 15453, 17170, 18207, 20230, 21210, 24038, 24745, 24990, 25755, 26010, 28322, 29189, 29694, 30345, 30906, 31815, 36057, 36414, 37485, 42483, 44541, 49490, 51510, 58378, 60095, 60690, 63630, 70805, 72114, 74235, 74970, 77265, 84133, 84966, 87567, 89082, 91035, 108171, 120190, 127449, 141610, 145945, 148470, 154530, 168266, 175134, 180285, 182070, 204323, 212415, 216342, 222705, 252399, 254898, 262701, 291890, 360570, 408646, 420665, 424830, 437835, 445410, 504798, 525402, 540855, 612969, 637245, 757197, 841330, 875670, 1021615, 1081710, 1225938, 1261995, 1274490, 1313505, 1430261, 1514394, 1838907, 2043230, 2523990, 2627010, 2860522, 3064845, 3677814, 3785985, 4290783, 6129690, 7151305, 7571970, 8581566, 9194535, 12872349, 14302610, 18389070, 21453915, 25744698, 42907830, 64361745, 128723490]

約数ペア:
[(1, 128723490), (2, 64361745), (3, 42907830), (5, 25744698), (6, 21453915), (7, 18389070), (9, 14302610), (10, 12872349), (14, 9194535), (15, 8581566), (17, 7571970), (18, 7151305), (21, 6129690), (30, 4290783), (34, 3785985), (35, 3677814), (42, 3064845), (45, 2860522), (49, 2627010), (51, 2523990), (63, 2043230), (70, 1838907), (85, 1514394), (90, 1430261), (98, 1313505), (101, 1274490), (102, 1261995), (105, 1225938), (119, 1081710), (126, 1021615), (147, 875670), (153, 841330), (170, 757197), (202, 637245), (210, 612969), (238, 540855), (245, 525402), (255, 504798), (289, 445410), (294, 437835), (303, 424830), (306, 420665), (315, 408646), (357, 360570), (441, 291890), (490, 262701), (505, 254898), (510, 252399), (578, 222705), (595, 216342), (606, 212415), (630, 204323), (707, 182070), (714, 180285), (735, 175134), (765, 168266), (833, 154530), (867, 148470), (882, 145945), (909, 141610), (1010, 127449), (1071, 120190), (1190, 108171), (1414, 91035), (1445, 89082), (1470, 87567), (1515, 84966), (1530, 84133), (1666, 77265), (1717, 74970), (1734, 74235), (1785, 72114), (1818, 70805), (2023, 63630), (2121, 60690), (2142, 60095), (2205, 58378), (2499, 51510), (2601, 49490), (2890, 44541), (3030, 42483), (3434, 37485), (3535, 36414), (3570, 36057), (4046, 31815), (4165, 30906), (4242, 30345), (4335, 29694), (4410, 29189), (4545, 28322), (4949, 26010), (4998, 25755), (5151, 24990), (5202, 24745), (5355, 24038), (6069, 21210), (6363, 20230), (7070, 18207), (7497, 17170), (8330, 15453), (8585, 14994), (8670, 14847), (9090, 14161), (9898, 13005), (10115, 12726), (10302, 12495), (10605, 12138), (10710, 12019)]

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