128839100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:220

約数の個数: 144

約数和(自身を含む): 326645760

約数和(自身を除く): 197806660

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 25, 26, 31, 46, 50, 52, 62, 65, 92, 100, 115, 124, 130, 139, 155, 230, 260, 278, 299, 310, 325, 403, 460, 556, 575, 598, 620, 650, 695, 713, 775, 806, 1150, 1196, 1300, 1390, 1426, 1495, 1550, 1612, 1807, 2015, 2300, 2780, 2852, 2990, 3100, 3197, 3475, 3565, 3614, 4030, 4309, 5980, 6394, 6950, 7130, 7228, 7475, 8060, 8618, 9035, 9269, 10075, 12788, 13900, 14260, 14950, 15985, 17236, 17825, 18070, 18538, 20150, 21545, 29900, 31970, 35650, 36140, 37076, 40300, 41561, 43090, 45175, 46345, 56017, 63940, 71300, 79925, 83122, 86180, 90350, 92690, 99107, 107725, 112034, 159850, 166244, 180700, 185380, 198214, 207805, 215450, 224068, 231725, 280085, 319700, 396428, 415610, 430900, 463450, 495535, 560170, 831220, 926900, 991070, 1039025, 1120340, 1288391, 1400425, 1982140, 2078050, 2477675, 2576782, 2800850, 4156100, 4955350, 5153564, 5601700, 6441955, 9910700, 12883910, 25767820, 32209775, 64419550, 128839100]

約数ペア:

[(1, 128839100), (2, 64419550), (4, 32209775), (5, 25767820), (10, 12883910), (13, 9910700), (20, 6441955), (23, 5601700), (25, 5153564), (26, 4955350), (31, 4156100), (46, 2800850), (50, 2576782), (52, 2477675), (62, 2078050), (65, 1982140), (92, 1400425), (100, 1288391), (115, 1120340), (124, 1039025), (130, 991070), (139, 926900), (155, 831220), (230, 560170), (260, 495535), (278, 463450), (299, 430900), (310, 415610), (325, 396428), (403, 319700), (460, 280085), (556, 231725), (575, 224068), (598, 215450), (620, 207805), (650, 198214), (695, 185380), (713, 180700), (775, 166244), (806, 159850), (1150, 112034), (1196, 107725), (1300, 99107), (1390, 92690), (1426, 90350), (1495, 86180), (1550, 83122), (1612, 79925), (1807, 71300), (2015, 63940), (2300, 56017), (2780, 46345), (2852, 45175), (2990, 43090), (3100, 41561), (3197, 40300), (3475, 37076), (3565, 36140), (3614, 35650), (4030, 31970), (4309, 29900), (5980, 21545), (6394, 20150), (6950, 18538), (7130, 18070), (7228, 17825), (7475, 17236), (8060, 15985), (8618, 14950), (9035, 14260), (9269, 13900), (10075, 12788)]