397618480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{30871}}^1$

素因数の和:30914

約数の個数: 80

約数和(自身を含む): 1102500864

約数和(自身を除く): 704882384

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2576, 3220, 6440, 12880, 30871, 61742, 123484, 154355, 216097, 246968, 308710, 432194, 493936, 617420, 710033, 864388, 1080485, 1234840, 1420066, 1728776, 2160970, 2469680, 2840132, 3457552, 3550165, 4321940, 4970231, 5680264, 7100330, 8643880, 9940462, 11360528, 14200660, 17287760, 19880924, 24851155, 28401320, 39761848, 49702310, 56802640, 79523696, 99404620, 198809240, 397618480]

約数ペア:

[(1, 397618480), (2, 198809240), (4, 99404620), (5, 79523696), (7, 56802640), (8, 49702310), (10, 39761848), (14, 28401320), (16, 24851155), (20, 19880924), (23, 17287760), (28, 14200660), (35, 11360528), (40, 9940462), (46, 8643880), (56, 7100330), (70, 5680264), (80, 4970231), (92, 4321940), (112, 3550165), (115, 3457552), (140, 2840132), (161, 2469680), (184, 2160970), (230, 1728776), (280, 1420066), (322, 1234840), (368, 1080485), (460, 864388), (560, 710033), (644, 617420), (805, 493936), (920, 432194), (1288, 308710), (1610, 246968), (1840, 216097), (2576, 154355), (3220, 123484), (6440, 61742), (12880, 30871)]