127935760

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{653}}^1$

素因数の和:776

約数の個数: 80

約数和(自身を含む): 311408640

約数和(自身を除く): 183472880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 79, 80, 124, 155, 158, 248, 310, 316, 395, 496, 620, 632, 653, 790, 1240, 1264, 1306, 1580, 2449, 2480, 2612, 3160, 3265, 4898, 5224, 6320, 6530, 9796, 10448, 12245, 13060, 19592, 20243, 24490, 26120, 39184, 40486, 48980, 51587, 52240, 80972, 97960, 101215, 103174, 161944, 195920, 202430, 206348, 257935, 323888, 404860, 412696, 515870, 809720, 825392, 1031740, 1599197, 1619440, 2063480, 3198394, 4126960, 6396788, 7995985, 12793576, 15991970, 25587152, 31983940, 63967880, 127935760]

約数ペア:

[(1, 127935760), (2, 63967880), (4, 31983940), (5, 25587152), (8, 15991970), (10, 12793576), (16, 7995985), (20, 6396788), (31, 4126960), (40, 3198394), (62, 2063480), (79, 1619440), (80, 1599197), (124, 1031740), (155, 825392), (158, 809720), (248, 515870), (310, 412696), (316, 404860), (395, 323888), (496, 257935), (620, 206348), (632, 202430), (653, 195920), (790, 161944), (1240, 103174), (1264, 101215), (1306, 97960), (1580, 80972), (2449, 52240), (2480, 51587), (2612, 48980), (3160, 40486), (3265, 39184), (4898, 26120), (5224, 24490), (6320, 20243), (6530, 19592), (9796, 13060), (10448, 12245)]