168170900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1451}}^1$

素因数の和:1545

約数の個数: 72

約数和(自身を含む): 390704160

約数和(自身を除く): 222533260

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 61, 76, 95, 100, 122, 190, 244, 305, 380, 475, 610, 950, 1159, 1220, 1451, 1525, 1900, 2318, 2902, 3050, 4636, 5795, 5804, 6100, 7255, 11590, 14510, 23180, 27569, 28975, 29020, 36275, 55138, 57950, 72550, 88511, 110276, 115900, 137845, 145100, 177022, 275690, 354044, 442555, 551380, 689225, 885110, 1378450, 1681709, 1770220, 2212775, 2756900, 3363418, 4425550, 6726836, 8408545, 8851100, 16817090, 33634180, 42042725, 84085450, 168170900]

約数ペア:

[(1, 168170900), (2, 84085450), (4, 42042725), (5, 33634180), (10, 16817090), (19, 8851100), (20, 8408545), (25, 6726836), (38, 4425550), (50, 3363418), (61, 2756900), (76, 2212775), (95, 1770220), (100, 1681709), (122, 1378450), (190, 885110), (244, 689225), (305, 551380), (380, 442555), (475, 354044), (610, 275690), (950, 177022), (1159, 145100), (1220, 137845), (1451, 115900), (1525, 110276), (1900, 88511), (2318, 72550), (2902, 57950), (3050, 55138), (4636, 36275), (5795, 29020), (5804, 28975), (6100, 27569), (7255, 23180), (11590, 14510)]