245465440

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:477

約数の個数: 144

約数和(自身を含む): 659594880

約数和(自身を除く): 414129440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 80, 88, 110, 121, 124, 155, 160, 176, 220, 242, 248, 310, 341, 352, 409, 440, 484, 496, 605, 620, 682, 818, 880, 968, 992, 1210, 1240, 1364, 1636, 1705, 1760, 1936, 2045, 2420, 2480, 2728, 3272, 3410, 3751, 3872, 4090, 4499, 4840, 4960, 5456, 6544, 6820, 7502, 8180, 8998, 9680, 10912, 12679, 13088, 13640, 15004, 16360, 17996, 18755, 19360, 22495, 25358, 27280, 30008, 32720, 35992, 37510, 44990, 49489, 50716, 54560, 60016, 63395, 65440, 71984, 75020, 89980, 98978, 101432, 120032, 126790, 139469, 143968, 150040, 179960, 197956, 202864, 247445, 253580, 278938, 300080, 359920, 395912, 405728, 494890, 507160, 557876, 600160, 697345, 719840, 791824, 989780, 1014320, 1115752, 1394690, 1534159, 1583648, 1979560, 2028640, 2231504, 2789380, 3068318, 3959120, 4463008, 5578760, 6136636, 7670795, 7918240, 11157520, 12273272, 15341590, 22315040, 24546544, 30683180, 49093088, 61366360, 122732720, 245465440]

約数ペア:

[(1, 245465440), (2, 122732720), (4, 61366360), (5, 49093088), (8, 30683180), (10, 24546544), (11, 22315040), (16, 15341590), (20, 12273272), (22, 11157520), (31, 7918240), (32, 7670795), (40, 6136636), (44, 5578760), (55, 4463008), (62, 3959120), (80, 3068318), (88, 2789380), (110, 2231504), (121, 2028640), (124, 1979560), (155, 1583648), (160, 1534159), (176, 1394690), (220, 1115752), (242, 1014320), (248, 989780), (310, 791824), (341, 719840), (352, 697345), (409, 600160), (440, 557876), (484, 507160), (496, 494890), (605, 405728), (620, 395912), (682, 359920), (818, 300080), (880, 278938), (968, 253580), (992, 247445), (1210, 202864), (1240, 197956), (1364, 179960), (1636, 150040), (1705, 143968), (1760, 139469), (1936, 126790), (2045, 120032), (2420, 101432), (2480, 98978), (2728, 89980), (3272, 75020), (3410, 71984), (3751, 65440), (3872, 63395), (4090, 60016), (4499, 54560), (4840, 50716), (4960, 49489), (5456, 44990), (6544, 37510), (6820, 35992), (7502, 32720), (8180, 30008), (8998, 27280), (9680, 25358), (10912, 22495), (12679, 19360), (13088, 18755), (13640, 17996), (15004, 16360)]