80873980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1453}}^1$

素因数の和:1507

約数の個数: 72

約数和(自身を含む): 194929056

約数和(自身を除く): 114055076

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 121, 220, 230, 242, 253, 460, 484, 506, 605, 1012, 1210, 1265, 1453, 2420, 2530, 2783, 2906, 5060, 5566, 5812, 7265, 11132, 13915, 14530, 15983, 27830, 29060, 31966, 33419, 55660, 63932, 66838, 79915, 133676, 159830, 167095, 175813, 319660, 334190, 351626, 367609, 668380, 703252, 735218, 879065, 1470436, 1758130, 1838045, 3516260, 3676090, 4043699, 7352180, 8087398, 16174796, 20218495, 40436990, 80873980]

約数ペア:

[(1, 80873980), (2, 40436990), (4, 20218495), (5, 16174796), (10, 8087398), (11, 7352180), (20, 4043699), (22, 3676090), (23, 3516260), (44, 1838045), (46, 1758130), (55, 1470436), (92, 879065), (110, 735218), (115, 703252), (121, 668380), (220, 367609), (230, 351626), (242, 334190), (253, 319660), (460, 175813), (484, 167095), (506, 159830), (605, 133676), (1012, 79915), (1210, 66838), (1265, 63932), (1453, 55660), (2420, 33419), (2530, 31966), (2783, 29060), (2906, 27830), (5060, 15983), (5566, 14530), (5812, 13915), (7265, 11132)]