289691900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:324

約数の個数: 144

約数和(自身を含む): 719953920

約数和(自身を除く): 430262020

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 25, 31, 34, 46, 50, 62, 68, 85, 92, 100, 115, 124, 155, 170, 230, 239, 310, 340, 391, 425, 460, 478, 527, 575, 620, 713, 775, 782, 850, 956, 1054, 1150, 1195, 1426, 1550, 1564, 1700, 1955, 2108, 2300, 2390, 2635, 2852, 3100, 3565, 3910, 4063, 4780, 5270, 5497, 5975, 7130, 7409, 7820, 8126, 9775, 10540, 10994, 11950, 12121, 13175, 14260, 14818, 16252, 17825, 19550, 20315, 21988, 23900, 24242, 26350, 27485, 29636, 35650, 37045, 39100, 40630, 48484, 52700, 54970, 60605, 71300, 74090, 81260, 93449, 101575, 109940, 121210, 125953, 137425, 148180, 170407, 185225, 186898, 203150, 242420, 251906, 274850, 303025, 340814, 370450, 373796, 406300, 467245, 503812, 549700, 606050, 629765, 681628, 740900, 852035, 934490, 1212100, 1259530, 1704070, 1868980, 2336225, 2519060, 2896919, 3148825, 3408140, 4260175, 4672450, 5793838, 6297650, 8520350, 9344900, 11587676, 12595300, 14484595, 17040700, 28969190, 57938380, 72422975, 144845950, 289691900]

約数ペア:

[(1, 289691900), (2, 144845950), (4, 72422975), (5, 57938380), (10, 28969190), (17, 17040700), (20, 14484595), (23, 12595300), (25, 11587676), (31, 9344900), (34, 8520350), (46, 6297650), (50, 5793838), (62, 4672450), (68, 4260175), (85, 3408140), (92, 3148825), (100, 2896919), (115, 2519060), (124, 2336225), (155, 1868980), (170, 1704070), (230, 1259530), (239, 1212100), (310, 934490), (340, 852035), (391, 740900), (425, 681628), (460, 629765), (478, 606050), (527, 549700), (575, 503812), (620, 467245), (713, 406300), (775, 373796), (782, 370450), (850, 340814), (956, 303025), (1054, 274850), (1150, 251906), (1195, 242420), (1426, 203150), (1550, 186898), (1564, 185225), (1700, 170407), (1955, 148180), (2108, 137425), (2300, 125953), (2390, 121210), (2635, 109940), (2852, 101575), (3100, 93449), (3565, 81260), (3910, 74090), (4063, 71300), (4780, 60605), (5270, 54970), (5497, 52700), (5975, 48484), (7130, 40630), (7409, 39100), (7820, 37045), (8126, 35650), (9775, 29636), (10540, 27485), (10994, 26350), (11950, 24242), (12121, 23900), (13175, 21988), (14260, 20315), (14818, 19550), (16252, 17825)]