421557760

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1$

素因数の和:328

約数の個数: 160

約数和(自身を含む): 1113678720

約数和(自身を除く): 692120960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 53, 64, 65, 80, 104, 106, 128, 130, 160, 208, 212, 239, 256, 260, 265, 320, 416, 424, 478, 512, 520, 530, 640, 689, 832, 848, 956, 1040, 1060, 1195, 1280, 1378, 1664, 1696, 1912, 2080, 2120, 2390, 2560, 2756, 3107, 3328, 3392, 3445, 3824, 4160, 4240, 4780, 5512, 6214, 6656, 6784, 6890, 7648, 8320, 8480, 9560, 11024, 12428, 12667, 13568, 13780, 15296, 15535, 16640, 16960, 19120, 22048, 24856, 25334, 27136, 27560, 30592, 31070, 33280, 33920, 38240, 44096, 49712, 50668, 55120, 61184, 62140, 63335, 67840, 76480, 88192, 99424, 101336, 110240, 122368, 124280, 126670, 135680, 152960, 164671, 176384, 198848, 202672, 220480, 248560, 253340, 305920, 329342, 352768, 397696, 405344, 440960, 497120, 506680, 611840, 658684, 795392, 810688, 823355, 881920, 994240, 1013360, 1317368, 1590784, 1621376, 1646710, 1763840, 1988480, 2026720, 2634736, 3242752, 3293420, 3976960, 4053440, 5269472, 6485504, 6586840, 7953920, 8106880, 10538944, 13173680, 16213760, 21077888, 26347360, 32427520, 42155776, 52694720, 84311552, 105389440, 210778880, 421557760]

約数ペア:

[(1, 421557760), (2, 210778880), (4, 105389440), (5, 84311552), (8, 52694720), (10, 42155776), (13, 32427520), (16, 26347360), (20, 21077888), (26, 16213760), (32, 13173680), (40, 10538944), (52, 8106880), (53, 7953920), (64, 6586840), (65, 6485504), (80, 5269472), (104, 4053440), (106, 3976960), (128, 3293420), (130, 3242752), (160, 2634736), (208, 2026720), (212, 1988480), (239, 1763840), (256, 1646710), (260, 1621376), (265, 1590784), (320, 1317368), (416, 1013360), (424, 994240), (478, 881920), (512, 823355), (520, 810688), (530, 795392), (640, 658684), (689, 611840), (832, 506680), (848, 497120), (956, 440960), (1040, 405344), (1060, 397696), (1195, 352768), (1280, 329342), (1378, 305920), (1664, 253340), (1696, 248560), (1912, 220480), (2080, 202672), (2120, 198848), (2390, 176384), (2560, 164671), (2756, 152960), (3107, 135680), (3328, 126670), (3392, 124280), (3445, 122368), (3824, 110240), (4160, 101336), (4240, 99424), (4780, 88192), (5512, 76480), (6214, 67840), (6656, 63335), (6784, 62140), (6890, 61184), (7648, 55120), (8320, 50668), (8480, 49712), (9560, 44096), (11024, 38240), (12428, 33920), (12667, 33280), (13568, 31070), (13780, 30592), (15296, 27560), (15535, 27136), (16640, 25334), (16960, 24856), (19120, 22048)]