289491020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{733}}^1$

素因数の和:800

約数の個数: 144

約数和(自身を含む): 787223808

約数和(自身を除く): 497732788

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 49, 52, 62, 65, 70, 91, 98, 124, 130, 140, 155, 182, 196, 217, 245, 260, 310, 364, 403, 434, 455, 490, 620, 637, 733, 806, 868, 910, 980, 1085, 1274, 1466, 1519, 1612, 1820, 2015, 2170, 2548, 2821, 2932, 3038, 3185, 3665, 4030, 4340, 5131, 5642, 6076, 6370, 7330, 7595, 8060, 9529, 10262, 11284, 12740, 14105, 14660, 15190, 19058, 19747, 20524, 22723, 25655, 28210, 30380, 35917, 38116, 39494, 45446, 47645, 51310, 56420, 66703, 71834, 78988, 90892, 95290, 98735, 102620, 113615, 133406, 143668, 159061, 179585, 190580, 197470, 227230, 266812, 295399, 318122, 333515, 359170, 394940, 454460, 466921, 590798, 636244, 667030, 718340, 795305, 933842, 1113427, 1181596, 1334060, 1476995, 1590610, 1867684, 2067793, 2226854, 2334605, 2953990, 3181220, 4135586, 4453708, 4669210, 5567135, 5907980, 8271172, 9338420, 10338965, 11134270, 14474551, 20677930, 22268540, 28949102, 41355860, 57898204, 72372755, 144745510, 289491020]

約数ペア:

[(1, 289491020), (2, 144745510), (4, 72372755), (5, 57898204), (7, 41355860), (10, 28949102), (13, 22268540), (14, 20677930), (20, 14474551), (26, 11134270), (28, 10338965), (31, 9338420), (35, 8271172), (49, 5907980), (52, 5567135), (62, 4669210), (65, 4453708), (70, 4135586), (91, 3181220), (98, 2953990), (124, 2334605), (130, 2226854), (140, 2067793), (155, 1867684), (182, 1590610), (196, 1476995), (217, 1334060), (245, 1181596), (260, 1113427), (310, 933842), (364, 795305), (403, 718340), (434, 667030), (455, 636244), (490, 590798), (620, 466921), (637, 454460), (733, 394940), (806, 359170), (868, 333515), (910, 318122), (980, 295399), (1085, 266812), (1274, 227230), (1466, 197470), (1519, 190580), (1612, 179585), (1820, 159061), (2015, 143668), (2170, 133406), (2548, 113615), (2821, 102620), (2932, 98735), (3038, 95290), (3185, 90892), (3665, 78988), (4030, 71834), (4340, 66703), (5131, 56420), (5642, 51310), (6076, 47645), (6370, 45446), (7330, 39494), (7595, 38116), (8060, 35917), (9529, 30380), (10262, 28210), (11284, 25655), (12740, 22723), (14105, 20524), (14660, 19747), (15190, 19058)]