About the Number

90905490

90905489 ← → 90905491

2進数表記:101011010110001101110010010

漢数字表記:九千九十万五千四百九十

素因数分解:

2 1 × 3 4 × 5 1 × 13 1 × 89 1 × 97 1

素因数の和:218
約数の個数: 160
約数和(自身を含む): 268939440
約数和(自身を除く): 178033950

約数列:
[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 81, 89, 90, 97, 117, 130, 135, 162, 178, 194, 195, 234, 267, 270, 291, 351, 390, 405, 445, 485, 534, 582, 585, 702, 801, 810, 873, 890, 970, 1053, 1157, 1170, 1261, 1335, 1455, 1602, 1746, 1755, 2106, 2314, 2403, 2522, 2619, 2670, 2910, 3471, 3510, 3783, 4005, 4365, 4806, 5238, 5265, 5785, 6305, 6942, 7209, 7566, 7857, 8010, 8633, 8730, 10413, 10530, 11349, 11570, 12015, 12610, 13095, 14418, 15714, 17266, 17355, 18915, 20826, 22698, 24030, 25899, 26190, 31239, 34047, 34710, 36045, 37830, 39285, 43165, 51798, 52065, 56745, 62478, 68094, 72090, 77697, 78570, 86330, 93717, 102141, 104130, 112229, 113490, 129495, 155394, 156195, 170235, 187434, 204282, 224458, 233091, 258990, 312390, 336687, 340470, 388485, 466182, 468585, 510705, 561145, 673374, 699273, 776970, 937170, 1010061, 1021410, 1122290, 1165455, 1398546, 1683435, 2020122, 2330910, 3030183, 3366870, 3496365, 5050305, 6060366, 6992730, 9090549, 10100610, 15150915, 18181098, 30301830, 45452745, 90905490]

約数ペア:
[(1, 90905490), (2, 45452745), (3, 30301830), (5, 18181098), (6, 15150915), (9, 10100610), (10, 9090549), (13, 6992730), (15, 6060366), (18, 5050305), (26, 3496365), (27, 3366870), (30, 3030183), (39, 2330910), (45, 2020122), (54, 1683435), (65, 1398546), (78, 1165455), (81, 1122290), (89, 1021410), (90, 1010061), (97, 937170), (117, 776970), (130, 699273), (135, 673374), (162, 561145), (178, 510705), (194, 468585), (195, 466182), (234, 388485), (267, 340470), (270, 336687), (291, 312390), (351, 258990), (390, 233091), (405, 224458), (445, 204282), (485, 187434), (534, 170235), (582, 156195), (585, 155394), (702, 129495), (801, 113490), (810, 112229), (873, 104130), (890, 102141), (970, 93717), (1053, 86330), (1157, 78570), (1170, 77697), (1261, 72090), (1335, 68094), (1455, 62478), (1602, 56745), (1746, 52065), (1755, 51798), (2106, 43165), (2314, 39285), (2403, 37830), (2522, 36045), (2619, 34710), (2670, 34047), (2910, 31239), (3471, 26190), (3510, 25899), (3783, 24030), (4005, 22698), (4365, 20826), (4806, 18915), (5238, 17355), (5265, 17266), (5785, 15714), (6305, 14418), (6942, 13095), (7209, 12610), (7566, 12015), (7857, 11570), (8010, 11349), (8633, 10530), (8730, 10413)]

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