128545840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3049}}^1$

素因数の和:3110

約数の個数: 80

約数和(自身を含む): 326764800

約数和(自身を除く): 198218960

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 40, 62, 68, 80, 85, 124, 136, 155, 170, 248, 272, 310, 340, 496, 527, 620, 680, 1054, 1240, 1360, 2108, 2480, 2635, 3049, 4216, 5270, 6098, 8432, 10540, 12196, 15245, 21080, 24392, 30490, 42160, 48784, 51833, 60980, 94519, 103666, 121960, 189038, 207332, 243920, 259165, 378076, 414664, 472595, 518330, 756152, 829328, 945190, 1036660, 1512304, 1606823, 1890380, 2073320, 3213646, 3780760, 4146640, 6427292, 7561520, 8034115, 12854584, 16068230, 25709168, 32136460, 64272920, 128545840]

約数ペア:

[(1, 128545840), (2, 64272920), (4, 32136460), (5, 25709168), (8, 16068230), (10, 12854584), (16, 8034115), (17, 7561520), (20, 6427292), (31, 4146640), (34, 3780760), (40, 3213646), (62, 2073320), (68, 1890380), (80, 1606823), (85, 1512304), (124, 1036660), (136, 945190), (155, 829328), (170, 756152), (248, 518330), (272, 472595), (310, 414664), (340, 378076), (496, 259165), (527, 243920), (620, 207332), (680, 189038), (1054, 121960), (1240, 103666), (1360, 94519), (2108, 60980), (2480, 51833), (2635, 48784), (3049, 42160), (4216, 30490), (5270, 24392), (6098, 21080), (8432, 15245), (10540, 12196)]