649740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:56

約数の個数: 144

約数和(自身を含む): 2413152

約数和(自身を除く): 1763412

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 17, 20, 21, 26, 28, 30, 34, 35, 39, 42, 49, 51, 52, 60, 65, 68, 70, 78, 84, 85, 91, 98, 102, 105, 119, 130, 140, 147, 156, 170, 182, 195, 196, 204, 210, 221, 238, 245, 255, 260, 273, 294, 340, 357, 364, 390, 420, 442, 455, 476, 490, 510, 546, 588, 595, 637, 663, 714, 735, 780, 833, 884, 910, 980, 1020, 1092, 1105, 1190, 1274, 1326, 1365, 1428, 1470, 1547, 1666, 1785, 1820, 1911, 2210, 2380, 2499, 2548, 2652, 2730, 2940, 3094, 3185, 3315, 3332, 3570, 3822, 4165, 4420, 4641, 4998, 5460, 6188, 6370, 6630, 7140, 7644, 7735, 8330, 9282, 9555, 9996, 10829, 12495, 12740, 13260, 15470, 16660, 18564, 19110, 21658, 23205, 24990, 30940, 32487, 38220, 43316, 46410, 49980, 54145, 64974, 92820, 108290, 129948, 162435, 216580, 324870, 649740]

約数ペア:

[(1, 649740), (2, 324870), (3, 216580), (4, 162435), (5, 129948), (6, 108290), (7, 92820), (10, 64974), (12, 54145), (13, 49980), (14, 46410), (15, 43316), (17, 38220), (20, 32487), (21, 30940), (26, 24990), (28, 23205), (30, 21658), (34, 19110), (35, 18564), (39, 16660), (42, 15470), (49, 13260), (51, 12740), (52, 12495), (60, 10829), (65, 9996), (68, 9555), (70, 9282), (78, 8330), (84, 7735), (85, 7644), (91, 7140), (98, 6630), (102, 6370), (105, 6188), (119, 5460), (130, 4998), (140, 4641), (147, 4420), (156, 4165), (170, 3822), (182, 3570), (195, 3332), (196, 3315), (204, 3185), (210, 3094), (221, 2940), (238, 2730), (245, 2652), (255, 2548), (260, 2499), (273, 2380), (294, 2210), (340, 1911), (357, 1820), (364, 1785), (390, 1666), (420, 1547), (442, 1470), (455, 1428), (476, 1365), (490, 1326), (510, 1274), (546, 1190), (588, 1105), (595, 1092), (637, 1020), (663, 980), (714, 910), (735, 884), (780, 833)]