18978104880

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{3765497}}^1$

素因数の和:3765523

約数の個数: 120

約数和(自身を含む): 72839793312

約数和(自身を除く): 53861688432

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 3765497, 7530994, 11296491, 15061988, 18827485, 22592982, 26358479, 30123976, 33889473, 37654970, 45185964, 52716958, 56482455, 60247952, 67778946, 75309940, 79075437, 90371928, 105433916, 112964910, 131792395, 135557892, 150619880, 158150874, 169447365, 180743856, 210867832, 225929820, 237226311, 263584790, 271115784, 301239760, 316301748, 338894730, 395377185, 421735664, 451859640, 474452622, 527169580, 542231568, 632603496, 677789460, 790754370, 903719280, 948905244, 1054339160, 1186131555, 1265206992, 1355578920, 1581508740, 1897810488, 2108678320, 2372263110, 2711157840, 3163017480, 3795620976, 4744526220, 6326034960, 9489052440, 18978104880]

約数ペア:

[(1, 18978104880), (2, 9489052440), (3, 6326034960), (4, 4744526220), (5, 3795620976), (6, 3163017480), (7, 2711157840), (8, 2372263110), (9, 2108678320), (10, 1897810488), (12, 1581508740), (14, 1355578920), (15, 1265206992), (16, 1186131555), (18, 1054339160), (20, 948905244), (21, 903719280), (24, 790754370), (28, 677789460), (30, 632603496), (35, 542231568), (36, 527169580), (40, 474452622), (42, 451859640), (45, 421735664), (48, 395377185), (56, 338894730), (60, 316301748), (63, 301239760), (70, 271115784), (72, 263584790), (80, 237226311), (84, 225929820), (90, 210867832), (105, 180743856), (112, 169447365), (120, 158150874), (126, 150619880), (140, 135557892), (144, 131792395), (168, 112964910), (180, 105433916), (210, 90371928), (240, 79075437), (252, 75309940), (280, 67778946), (315, 60247952), (336, 56482455), (360, 52716958), (420, 45185964), (504, 37654970), (560, 33889473), (630, 30123976), (720, 26358479), (840, 22592982), (1008, 18827485), (1260, 15061988), (1680, 11296491), (2520, 7530994), (5040, 3765497)]