25809980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1$

素因数の和:379

約数の個数: 96

約数和(自身を含む): 67522560

約数和(自身を除く): 41712580

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 31, 35, 38, 62, 70, 76, 95, 124, 133, 140, 155, 190, 217, 266, 310, 313, 380, 434, 532, 589, 620, 626, 665, 868, 1085, 1178, 1252, 1330, 1565, 2170, 2191, 2356, 2660, 2945, 3130, 4123, 4340, 4382, 5890, 5947, 6260, 8246, 8764, 9703, 10955, 11780, 11894, 16492, 19406, 20615, 21910, 23788, 29735, 38812, 41230, 41629, 43820, 48515, 59470, 67921, 82460, 83258, 97030, 118940, 135842, 166516, 184357, 194060, 208145, 271684, 339605, 368714, 416290, 679210, 737428, 832580, 921785, 1290499, 1358420, 1843570, 2580998, 3687140, 5161996, 6452495, 12904990, 25809980]

約数ペア:

[(1, 25809980), (2, 12904990), (4, 6452495), (5, 5161996), (7, 3687140), (10, 2580998), (14, 1843570), (19, 1358420), (20, 1290499), (28, 921785), (31, 832580), (35, 737428), (38, 679210), (62, 416290), (70, 368714), (76, 339605), (95, 271684), (124, 208145), (133, 194060), (140, 184357), (155, 166516), (190, 135842), (217, 118940), (266, 97030), (310, 83258), (313, 82460), (380, 67921), (434, 59470), (532, 48515), (589, 43820), (620, 41629), (626, 41230), (665, 38812), (868, 29735), (1085, 23788), (1178, 21910), (1252, 20615), (1330, 19406), (1565, 16492), (2170, 11894), (2191, 11780), (2356, 10955), (2660, 9703), (2945, 8764), (3130, 8246), (4123, 6260), (4340, 5947), (4382, 5890)]