19691820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3529}}^1$

素因数の和:3575

約数の個数: 72

約数和(自身を含む): 61676160

約数和(自身を除く): 41984340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 3529, 5580, 7058, 10587, 14116, 17645, 21174, 31761, 35290, 42348, 52935, 63522, 70580, 105870, 109399, 127044, 158805, 211740, 218798, 317610, 328197, 437596, 546995, 635220, 656394, 984591, 1093990, 1312788, 1640985, 1969182, 2187980, 3281970, 3938364, 4922955, 6563940, 9845910, 19691820]

約数ペア:

[(1, 19691820), (2, 9845910), (3, 6563940), (4, 4922955), (5, 3938364), (6, 3281970), (9, 2187980), (10, 1969182), (12, 1640985), (15, 1312788), (18, 1093990), (20, 984591), (30, 656394), (31, 635220), (36, 546995), (45, 437596), (60, 328197), (62, 317610), (90, 218798), (93, 211740), (124, 158805), (155, 127044), (180, 109399), (186, 105870), (279, 70580), (310, 63522), (372, 52935), (465, 42348), (558, 35290), (620, 31761), (930, 21174), (1116, 17645), (1395, 14116), (1860, 10587), (2790, 7058), (3529, 5580)]