153356380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 340320960

約数和(自身を除く): 186964580

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 101, 124, 155, 158, 202, 310, 316, 395, 404, 505, 620, 790, 961, 1010, 1580, 1922, 2020, 2449, 3131, 3844, 4805, 4898, 6262, 7979, 9610, 9796, 12245, 12524, 15655, 15958, 19220, 24490, 31310, 31916, 39895, 48980, 62620, 75919, 79790, 97061, 151838, 159580, 194122, 247349, 303676, 379595, 388244, 485305, 494698, 759190, 970610, 989396, 1236745, 1518380, 1941220, 2473490, 4946980, 7667819, 15335638, 30671276, 38339095, 76678190, 153356380]

約数ペア:

[(1, 153356380), (2, 76678190), (4, 38339095), (5, 30671276), (10, 15335638), (20, 7667819), (31, 4946980), (62, 2473490), (79, 1941220), (101, 1518380), (124, 1236745), (155, 989396), (158, 970610), (202, 759190), (310, 494698), (316, 485305), (395, 388244), (404, 379595), (505, 303676), (620, 247349), (790, 194122), (961, 159580), (1010, 151838), (1580, 97061), (1922, 79790), (2020, 75919), (2449, 62620), (3131, 48980), (3844, 39895), (4805, 31916), (4898, 31310), (6262, 24490), (7979, 19220), (9610, 15958), (9796, 15655), (12245, 12524)]