1640964070

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{1181}}^1$

素因数の和:1381

約数の個数: 64

約数和(自身を含む): 3186293760

約数和(自身を除く): 1545329690

約数列:

[1, 2, 5, 10, 19, 38, 71, 95, 103, 142, 190, 206, 355, 515, 710, 1030, 1181, 1349, 1957, 2362, 2698, 3914, 5905, 6745, 7313, 9785, 11810, 13490, 14626, 19570, 22439, 36565, 44878, 73130, 83851, 112195, 121643, 138947, 167702, 224390, 243286, 277894, 419255, 608215, 694735, 838510, 1216430, 1389470, 1593169, 2311217, 3186338, 4622434, 7965845, 8636653, 11556085, 15931690, 17273306, 23112170, 43183265, 86366530, 164096407, 328192814, 820482035, 1640964070]

約数ペア:

[(1, 1640964070), (2, 820482035), (5, 328192814), (10, 164096407), (19, 86366530), (38, 43183265), (71, 23112170), (95, 17273306), (103, 15931690), (142, 11556085), (190, 8636653), (206, 7965845), (355, 4622434), (515, 3186338), (710, 2311217), (1030, 1593169), (1181, 1389470), (1349, 1216430), (1957, 838510), (2362, 694735), (2698, 608215), (3914, 419255), (5905, 277894), (6745, 243286), (7313, 224390), (9785, 167702), (11810, 138947), (13490, 121643), (14626, 112195), (19570, 83851), (22439, 73130), (36565, 44878)]