814051720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{4639}}^1$

素因数の和:4798

約数の個数: 64

約数和(自身を含む): 1894233600

約数和(自身を除く): 1080181880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 107, 164, 205, 214, 328, 410, 428, 535, 820, 856, 1070, 1640, 2140, 4280, 4387, 4639, 8774, 9278, 17548, 18556, 21935, 23195, 35096, 37112, 43870, 46390, 87740, 92780, 175480, 185560, 190199, 380398, 496373, 760796, 950995, 992746, 1521592, 1901990, 1985492, 2481865, 3803980, 3970984, 4963730, 7607960, 9927460, 19854920, 20351293, 40702586, 81405172, 101756465, 162810344, 203512930, 407025860, 814051720]

約数ペア:

[(1, 814051720), (2, 407025860), (4, 203512930), (5, 162810344), (8, 101756465), (10, 81405172), (20, 40702586), (40, 20351293), (41, 19854920), (82, 9927460), (107, 7607960), (164, 4963730), (205, 3970984), (214, 3803980), (328, 2481865), (410, 1985492), (428, 1901990), (535, 1521592), (820, 992746), (856, 950995), (1070, 760796), (1640, 496373), (2140, 380398), (4280, 190199), (4387, 185560), (4639, 175480), (8774, 92780), (9278, 87740), (17548, 46390), (18556, 43870), (21935, 37112), (23195, 35096)]