28421960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{853}}^1$

素因数の和:895

約数の個数: 96

約数和(自身を含む): 78858360

約数和(自身を除く): 50436400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 49, 56, 68, 70, 85, 98, 119, 136, 140, 170, 196, 238, 245, 280, 340, 392, 476, 490, 595, 680, 833, 853, 952, 980, 1190, 1666, 1706, 1960, 2380, 3332, 3412, 4165, 4265, 4760, 5971, 6664, 6824, 8330, 8530, 11942, 14501, 16660, 17060, 23884, 29002, 29855, 33320, 34120, 41797, 47768, 58004, 59710, 72505, 83594, 101507, 116008, 119420, 145010, 167188, 203014, 208985, 238840, 290020, 334376, 406028, 417970, 507535, 580040, 710549, 812056, 835940, 1015070, 1421098, 1671880, 2030140, 2842196, 3552745, 4060280, 5684392, 7105490, 14210980, 28421960]

約数ペア:

[(1, 28421960), (2, 14210980), (4, 7105490), (5, 5684392), (7, 4060280), (8, 3552745), (10, 2842196), (14, 2030140), (17, 1671880), (20, 1421098), (28, 1015070), (34, 835940), (35, 812056), (40, 710549), (49, 580040), (56, 507535), (68, 417970), (70, 406028), (85, 334376), (98, 290020), (119, 238840), (136, 208985), (140, 203014), (170, 167188), (196, 145010), (238, 119420), (245, 116008), (280, 101507), (340, 83594), (392, 72505), (476, 59710), (490, 58004), (595, 47768), (680, 41797), (833, 34120), (853, 33320), (952, 29855), (980, 29002), (1190, 23884), (1666, 17060), (1706, 16660), (1960, 14501), (2380, 11942), (3332, 8530), (3412, 8330), (4165, 6824), (4265, 6664), (4760, 5971)]