28397460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{743}}^1$

素因数の和:782

約数の個数: 144

約数和(自身を含む): 99743616

約数和(自身を除く): 71346156

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 78, 84, 91, 98, 105, 130, 140, 147, 156, 182, 195, 196, 210, 245, 260, 273, 294, 364, 390, 420, 455, 490, 546, 588, 637, 735, 743, 780, 910, 980, 1092, 1274, 1365, 1470, 1486, 1820, 1911, 2229, 2548, 2730, 2940, 2972, 3185, 3715, 3822, 4458, 5201, 5460, 6370, 7430, 7644, 8916, 9555, 9659, 10402, 11145, 12740, 14860, 15603, 19110, 19318, 20804, 22290, 26005, 28977, 31206, 36407, 38220, 38636, 44580, 48295, 52010, 57954, 62412, 67613, 72814, 78015, 96590, 104020, 109221, 115908, 135226, 144885, 145628, 156030, 182035, 193180, 202839, 218442, 270452, 289770, 312060, 338065, 364070, 405678, 436884, 473291, 546105, 579540, 676130, 728140, 811356, 946582, 1014195, 1092210, 1352260, 1419873, 1893164, 2028390, 2184420, 2366455, 2839746, 4056780, 4732910, 5679492, 7099365, 9465820, 14198730, 28397460]

約数ペア:

[(1, 28397460), (2, 14198730), (3, 9465820), (4, 7099365), (5, 5679492), (6, 4732910), (7, 4056780), (10, 2839746), (12, 2366455), (13, 2184420), (14, 2028390), (15, 1893164), (20, 1419873), (21, 1352260), (26, 1092210), (28, 1014195), (30, 946582), (35, 811356), (39, 728140), (42, 676130), (49, 579540), (52, 546105), (60, 473291), (65, 436884), (70, 405678), (78, 364070), (84, 338065), (91, 312060), (98, 289770), (105, 270452), (130, 218442), (140, 202839), (147, 193180), (156, 182035), (182, 156030), (195, 145628), (196, 144885), (210, 135226), (245, 115908), (260, 109221), (273, 104020), (294, 96590), (364, 78015), (390, 72814), (420, 67613), (455, 62412), (490, 57954), (546, 52010), (588, 48295), (637, 44580), (735, 38636), (743, 38220), (780, 36407), (910, 31206), (980, 28977), (1092, 26005), (1274, 22290), (1365, 20804), (1470, 19318), (1486, 19110), (1820, 15603), (1911, 14860), (2229, 12740), (2548, 11145), (2730, 10402), (2940, 9659), (2972, 9555), (3185, 8916), (3715, 7644), (3822, 7430), (4458, 6370), (5201, 5460)]