12945460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{163}}^1$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 31491936

約数和(自身を除く): 18546476

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 163, 190, 209, 220, 326, 361, 380, 418, 652, 722, 815, 836, 1045, 1444, 1630, 1793, 1805, 2090, 3097, 3260, 3586, 3610, 3971, 4180, 6194, 7172, 7220, 7942, 8965, 12388, 15485, 15884, 17930, 19855, 30970, 34067, 35860, 39710, 58843, 61940, 68134, 79420, 117686, 136268, 170335, 235372, 294215, 340670, 588430, 647273, 681340, 1176860, 1294546, 2589092, 3236365, 6472730, 12945460]

約数ペア:

[(1, 12945460), (2, 6472730), (4, 3236365), (5, 2589092), (10, 1294546), (11, 1176860), (19, 681340), (20, 647273), (22, 588430), (38, 340670), (44, 294215), (55, 235372), (76, 170335), (95, 136268), (110, 117686), (163, 79420), (190, 68134), (209, 61940), (220, 58843), (326, 39710), (361, 35860), (380, 34067), (418, 30970), (652, 19855), (722, 17930), (815, 15884), (836, 15485), (1045, 12388), (1444, 8965), (1630, 7942), (1793, 7220), (1805, 7172), (2090, 6194), (3097, 4180), (3260, 3971), (3586, 3610)]