81254775

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:193

約数の個数: 96

約数和(自身を含む): 162846720

約数和(自身を除く): 81591945

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 37, 47, 75, 89, 105, 111, 141, 175, 185, 235, 259, 267, 329, 445, 525, 555, 623, 705, 777, 925, 987, 1175, 1295, 1335, 1645, 1739, 1869, 2225, 2775, 3115, 3293, 3525, 3885, 4183, 4935, 5217, 6475, 6675, 8225, 8695, 9345, 9879, 12173, 12549, 15575, 16465, 19425, 20915, 23051, 24675, 26085, 29281, 36519, 43475, 46725, 49395, 60865, 62745, 69153, 82325, 87843, 104575, 115255, 130425, 146405, 154771, 182595, 246975, 304325, 313725, 345765, 439215, 464313, 576275, 732025, 773855, 912975, 1083397, 1728825, 2196075, 2321565, 3250191, 3869275, 5416985, 11607825, 16250955, 27084925, 81254775]

約数ペア:

[(1, 81254775), (3, 27084925), (5, 16250955), (7, 11607825), (15, 5416985), (21, 3869275), (25, 3250191), (35, 2321565), (37, 2196075), (47, 1728825), (75, 1083397), (89, 912975), (105, 773855), (111, 732025), (141, 576275), (175, 464313), (185, 439215), (235, 345765), (259, 313725), (267, 304325), (329, 246975), (445, 182595), (525, 154771), (555, 146405), (623, 130425), (705, 115255), (777, 104575), (925, 87843), (987, 82325), (1175, 69153), (1295, 62745), (1335, 60865), (1645, 49395), (1739, 46725), (1869, 43475), (2225, 36519), (2775, 29281), (3115, 26085), (3293, 24675), (3525, 23051), (3885, 20915), (4183, 19425), (4935, 16465), (5217, 15575), (6475, 12549), (6675, 12173), (8225, 9879), (8695, 9345)]