78254540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:152

約数の個数: 192

約数和(自身を含む): 222781440

約数和(自身を除く): 144526900

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 31, 35, 38, 52, 62, 65, 70, 73, 76, 91, 95, 124, 130, 133, 140, 146, 155, 182, 190, 217, 247, 260, 266, 292, 310, 364, 365, 380, 403, 434, 455, 494, 511, 532, 589, 620, 665, 730, 806, 868, 910, 949, 988, 1022, 1085, 1178, 1235, 1330, 1387, 1460, 1612, 1729, 1820, 1898, 2015, 2044, 2170, 2263, 2356, 2470, 2555, 2660, 2774, 2821, 2945, 3458, 3796, 4030, 4123, 4340, 4526, 4745, 4940, 5110, 5548, 5642, 5890, 6643, 6916, 6935, 7657, 8060, 8246, 8645, 9052, 9490, 9709, 10220, 11284, 11315, 11780, 13286, 13870, 14105, 15314, 15841, 16492, 17290, 18031, 18980, 19418, 20615, 22630, 26572, 27740, 28210, 29419, 30628, 31682, 33215, 34580, 36062, 38285, 38836, 41230, 42997, 45260, 48545, 53599, 56420, 58838, 63364, 66430, 72124, 76570, 79205, 82460, 85994, 90155, 97090, 107198, 117676, 126217, 132860, 147095, 153140, 158410, 171988, 180310, 194180, 205933, 214396, 214985, 252434, 267995, 294190, 300979, 316820, 360620, 411866, 429970, 504868, 535990, 558961, 588380, 601958, 631085, 823732, 859940, 1029665, 1071980, 1117922, 1203916, 1262170, 1504895, 2059330, 2235844, 2524340, 2794805, 3009790, 3912727, 4118660, 5589610, 6019580, 7825454, 11179220, 15650908, 19563635, 39127270, 78254540]

約数ペア:

[(1, 78254540), (2, 39127270), (4, 19563635), (5, 15650908), (7, 11179220), (10, 7825454), (13, 6019580), (14, 5589610), (19, 4118660), (20, 3912727), (26, 3009790), (28, 2794805), (31, 2524340), (35, 2235844), (38, 2059330), (52, 1504895), (62, 1262170), (65, 1203916), (70, 1117922), (73, 1071980), (76, 1029665), (91, 859940), (95, 823732), (124, 631085), (130, 601958), (133, 588380), (140, 558961), (146, 535990), (155, 504868), (182, 429970), (190, 411866), (217, 360620), (247, 316820), (260, 300979), (266, 294190), (292, 267995), (310, 252434), (364, 214985), (365, 214396), (380, 205933), (403, 194180), (434, 180310), (455, 171988), (494, 158410), (511, 153140), (532, 147095), (589, 132860), (620, 126217), (665, 117676), (730, 107198), (806, 97090), (868, 90155), (910, 85994), (949, 82460), (988, 79205), (1022, 76570), (1085, 72124), (1178, 66430), (1235, 63364), (1330, 58838), (1387, 56420), (1460, 53599), (1612, 48545), (1729, 45260), (1820, 42997), (1898, 41230), (2015, 38836), (2044, 38285), (2170, 36062), (2263, 34580), (2356, 33215), (2470, 31682), (2555, 30628), (2660, 29419), (2774, 28210), (2821, 27740), (2945, 26572), (3458, 22630), (3796, 20615), (4030, 19418), (4123, 18980), (4340, 18031), (4526, 17290), (4745, 16492), (4940, 15841), (5110, 15314), (5548, 14105), (5642, 13870), (5890, 13286), (6643, 11780), (6916, 11315), (6935, 11284), (7657, 10220), (8060, 9709), (8246, 9490), (8645, 9052)]