210778880

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1$

素因数の和:326

約数の個数: 144

約数和(自身を含む): 556295040

約数和(自身を除く): 345516160

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, 520, 530, 640, 689, 832, 848, 956, 1040, 1060, 1195, 1280, 1378, 1664, 1696, 1912, 2080, 2120, 2390, 2756, 3107, 3328, 3392, 3445, 3824, 4160, 4240, 4780, 5512, 6214, 6784, 6890, 7648, 8320, 8480, 9560, 11024, 12428, 12667, 13568, 13780, 15296, 15535, 16640, 16960, 19120, 22048, 24856, 25334, 27560, 30592, 31070, 33920, 38240, 44096, 49712, 50668, 55120, 61184, 62140, 63335, 67840, 76480, 88192, 99424, 101336, 110240, 124280, 126670, 152960, 164671, 176384, 198848, 202672, 220480, 248560, 253340, 305920, 329342, 397696, 405344, 440960, 497120, 506680, 658684, 795392, 810688, 823355, 881920, 994240, 1013360, 1317368, 1621376, 1646710, 1988480, 2026720, 2634736, 3242752, 3293420, 3976960, 4053440, 5269472, 6586840, 8106880, 10538944, 13173680, 16213760, 21077888, 26347360, 42155776, 52694720, 105389440, 210778880]

約数ペア:

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