20469460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:181

約数の個数: 96

約数和(自身を含む): 50803200

約数和(自身を除く): 30333740

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 59, 76, 83, 95, 110, 118, 166, 190, 209, 220, 236, 295, 332, 380, 415, 418, 590, 649, 830, 836, 913, 1045, 1121, 1180, 1298, 1577, 1660, 1826, 2090, 2242, 2596, 3154, 3245, 3652, 4180, 4484, 4565, 4897, 5605, 6308, 6490, 7885, 9130, 9794, 11210, 12331, 12980, 15770, 17347, 18260, 19588, 22420, 24485, 24662, 31540, 34694, 48970, 49324, 53867, 61655, 69388, 86735, 93043, 97940, 107734, 123310, 173470, 186086, 215468, 246620, 269335, 346940, 372172, 465215, 538670, 930430, 1023473, 1077340, 1860860, 2046946, 4093892, 5117365, 10234730, 20469460]

約数ペア:

[(1, 20469460), (2, 10234730), (4, 5117365), (5, 4093892), (10, 2046946), (11, 1860860), (19, 1077340), (20, 1023473), (22, 930430), (38, 538670), (44, 465215), (55, 372172), (59, 346940), (76, 269335), (83, 246620), (95, 215468), (110, 186086), (118, 173470), (166, 123310), (190, 107734), (209, 97940), (220, 93043), (236, 86735), (295, 69388), (332, 61655), (380, 53867), (415, 49324), (418, 48970), (590, 34694), (649, 31540), (830, 24662), (836, 24485), (913, 22420), (1045, 19588), (1121, 18260), (1180, 17347), (1298, 15770), (1577, 12980), (1660, 12331), (1826, 11210), (2090, 9794), (2242, 9130), (2596, 7885), (3154, 6490), (3245, 6308), (3652, 5605), (4180, 4897), (4484, 4565)]