19925490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2689}}^1$

素因数の和:2731

約数の個数: 64

約数和(自身を含む): 54230400

約数和(自身を除く): 34304910

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 19, 26, 30, 38, 39, 57, 65, 78, 95, 114, 130, 190, 195, 247, 285, 390, 494, 570, 741, 1235, 1482, 2470, 2689, 3705, 5378, 7410, 8067, 13445, 16134, 26890, 34957, 40335, 51091, 69914, 80670, 102182, 104871, 153273, 174785, 209742, 255455, 306546, 349570, 510910, 524355, 664183, 766365, 1048710, 1328366, 1532730, 1992549, 3320915, 3985098, 6641830, 9962745, 19925490]

約数ペア:

[(1, 19925490), (2, 9962745), (3, 6641830), (5, 3985098), (6, 3320915), (10, 1992549), (13, 1532730), (15, 1328366), (19, 1048710), (26, 766365), (30, 664183), (38, 524355), (39, 510910), (57, 349570), (65, 306546), (78, 255455), (95, 209742), (114, 174785), (130, 153273), (190, 104871), (195, 102182), (247, 80670), (285, 69914), (390, 51091), (494, 40335), (570, 34957), (741, 26890), (1235, 16134), (1482, 13445), (2470, 8067), (2689, 7410), (3705, 5378)]