651109120

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{269}}^1$

素因数の和:382

約数の個数: 144

約数和(自身を含む): 1642394880

約数和(自身を除く): 991285760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 61, 62, 64, 80, 122, 124, 128, 155, 160, 244, 248, 256, 269, 305, 310, 320, 488, 496, 538, 610, 620, 640, 976, 992, 1076, 1220, 1240, 1280, 1345, 1891, 1952, 1984, 2152, 2440, 2480, 2690, 3782, 3904, 3968, 4304, 4880, 4960, 5380, 7564, 7808, 7936, 8339, 8608, 9455, 9760, 9920, 10760, 15128, 15616, 16409, 16678, 17216, 18910, 19520, 19840, 21520, 30256, 32818, 33356, 34432, 37820, 39040, 39680, 41695, 43040, 60512, 65636, 66712, 68864, 75640, 78080, 82045, 83390, 86080, 121024, 131272, 133424, 151280, 164090, 166780, 172160, 242048, 262544, 266848, 302560, 328180, 333560, 344320, 484096, 508679, 525088, 533696, 605120, 656360, 667120, 1017358, 1050176, 1067392, 1210240, 1312720, 1334240, 2034716, 2100352, 2134784, 2420480, 2543395, 2625440, 2668480, 4069432, 4200704, 5086790, 5250880, 5336960, 8138864, 10173580, 10501760, 10673920, 16277728, 20347160, 21003520, 32555456, 40694320, 65110912, 81388640, 130221824, 162777280, 325554560, 651109120]

約数ペア:

[(1, 651109120), (2, 325554560), (4, 162777280), (5, 130221824), (8, 81388640), (10, 65110912), (16, 40694320), (20, 32555456), (31, 21003520), (32, 20347160), (40, 16277728), (61, 10673920), (62, 10501760), (64, 10173580), (80, 8138864), (122, 5336960), (124, 5250880), (128, 5086790), (155, 4200704), (160, 4069432), (244, 2668480), (248, 2625440), (256, 2543395), (269, 2420480), (305, 2134784), (310, 2100352), (320, 2034716), (488, 1334240), (496, 1312720), (538, 1210240), (610, 1067392), (620, 1050176), (640, 1017358), (976, 667120), (992, 656360), (1076, 605120), (1220, 533696), (1240, 525088), (1280, 508679), (1345, 484096), (1891, 344320), (1952, 333560), (1984, 328180), (2152, 302560), (2440, 266848), (2480, 262544), (2690, 242048), (3782, 172160), (3904, 166780), (3968, 164090), (4304, 151280), (4880, 133424), (4960, 131272), (5380, 121024), (7564, 86080), (7808, 83390), (7936, 82045), (8339, 78080), (8608, 75640), (9455, 68864), (9760, 66712), (9920, 65636), (10760, 60512), (15128, 43040), (15616, 41695), (16409, 39680), (16678, 39040), (17216, 37820), (18910, 34432), (19520, 33356), (19840, 32818), (21520, 30256)]