19900007900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{251}}^1\times {\mathrm{313}}^1$

素因数の和:744

約数の個数: 144

約数和(自身を含む): 46361095200

約数和(自身を除く): 26461087300

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 149, 170, 251, 298, 313, 340, 425, 502, 596, 626, 745, 850, 1004, 1252, 1255, 1490, 1565, 1700, 2510, 2533, 2980, 3130, 3725, 4267, 5020, 5066, 5321, 6260, 6275, 7450, 7825, 8534, 10132, 10642, 12550, 12665, 14900, 15650, 17068, 21284, 21335, 25100, 25330, 26605, 31300, 37399, 42670, 46637, 50660, 53210, 63325, 74798, 78563, 85340, 93274, 106420, 106675, 126650, 133025, 149596, 157126, 186548, 186995, 213350, 233185, 253300, 266050, 314252, 373990, 392815, 426700, 466370, 532100, 635783, 747980, 785630, 792829, 932740, 934975, 1165925, 1271566, 1335571, 1571260, 1585658, 1869950, 1964075, 2331850, 2543132, 2671142, 3171316, 3178915, 3739900, 3928150, 3964145, 4663700, 5342284, 6357830, 6677855, 7856300, 7928290, 11705887, 12715660, 13355710, 15856580, 15894575, 19820725, 23411774, 26711420, 31789150, 33389275, 39641450, 46823548, 58529435, 63578300, 66778550, 79282900, 117058870, 133557100, 199000079, 234117740, 292647175, 398000158, 585294350, 796000316, 995000395, 1170588700, 1990000790, 3980001580, 4975001975, 9950003950, 19900007900]

約数ペア:

[(1, 19900007900), (2, 9950003950), (4, 4975001975), (5, 3980001580), (10, 1990000790), (17, 1170588700), (20, 995000395), (25, 796000316), (34, 585294350), (50, 398000158), (68, 292647175), (85, 234117740), (100, 199000079), (149, 133557100), (170, 117058870), (251, 79282900), (298, 66778550), (313, 63578300), (340, 58529435), (425, 46823548), (502, 39641450), (596, 33389275), (626, 31789150), (745, 26711420), (850, 23411774), (1004, 19820725), (1252, 15894575), (1255, 15856580), (1490, 13355710), (1565, 12715660), (1700, 11705887), (2510, 7928290), (2533, 7856300), (2980, 6677855), (3130, 6357830), (3725, 5342284), (4267, 4663700), (5020, 3964145), (5066, 3928150), (5321, 3739900), (6260, 3178915), (6275, 3171316), (7450, 2671142), (7825, 2543132), (8534, 2331850), (10132, 1964075), (10642, 1869950), (12550, 1585658), (12665, 1571260), (14900, 1335571), (15650, 1271566), (17068, 1165925), (21284, 934975), (21335, 932740), (25100, 792829), (25330, 785630), (26605, 747980), (31300, 635783), (37399, 532100), (42670, 466370), (46637, 426700), (50660, 392815), (53210, 373990), (63325, 314252), (74798, 266050), (78563, 253300), (85340, 233185), (93274, 213350), (106420, 186995), (106675, 186548), (126650, 157126), (133025, 149596)]