257336820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6469}}^1$

素因数の和:6514

約数の個数: 144

約数和(自身を含む): 890220240

約数和(自身を除く): 632883420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 78, 85, 90, 102, 117, 130, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 306, 340, 390, 442, 468, 510, 585, 612, 663, 765, 780, 884, 1020, 1105, 1170, 1326, 1530, 1989, 2210, 2340, 2652, 3060, 3315, 3978, 4420, 6469, 6630, 7956, 9945, 12938, 13260, 19407, 19890, 25876, 32345, 38814, 39780, 58221, 64690, 77628, 84097, 97035, 109973, 116442, 129380, 168194, 194070, 219946, 232884, 252291, 291105, 329919, 336388, 388140, 420485, 439892, 504582, 549865, 582210, 659838, 756873, 840970, 989757, 1009164, 1099730, 1164420, 1261455, 1319676, 1429649, 1513746, 1649595, 1681940, 1979514, 2199460, 2522910, 2859298, 3027492, 3299190, 3784365, 3959028, 4288947, 4948785, 5045820, 5718596, 6598380, 7148245, 7568730, 8577894, 9897570, 12866841, 14296490, 15137460, 17155788, 19795140, 21444735, 25733682, 28592980, 42889470, 51467364, 64334205, 85778940, 128668410, 257336820]

約数ペア:

[(1, 257336820), (2, 128668410), (3, 85778940), (4, 64334205), (5, 51467364), (6, 42889470), (9, 28592980), (10, 25733682), (12, 21444735), (13, 19795140), (15, 17155788), (17, 15137460), (18, 14296490), (20, 12866841), (26, 9897570), (30, 8577894), (34, 7568730), (36, 7148245), (39, 6598380), (45, 5718596), (51, 5045820), (52, 4948785), (60, 4288947), (65, 3959028), (68, 3784365), (78, 3299190), (85, 3027492), (90, 2859298), (102, 2522910), (117, 2199460), (130, 1979514), (153, 1681940), (156, 1649595), (170, 1513746), (180, 1429649), (195, 1319676), (204, 1261455), (221, 1164420), (234, 1099730), (255, 1009164), (260, 989757), (306, 840970), (340, 756873), (390, 659838), (442, 582210), (468, 549865), (510, 504582), (585, 439892), (612, 420485), (663, 388140), (765, 336388), (780, 329919), (884, 291105), (1020, 252291), (1105, 232884), (1170, 219946), (1326, 194070), (1530, 168194), (1989, 129380), (2210, 116442), (2340, 109973), (2652, 97035), (3060, 84097), (3315, 77628), (3978, 64690), (4420, 58221), (6469, 39780), (6630, 38814), (7956, 32345), (9945, 25876), (12938, 19890), (13260, 19407)]