19737675

素因数分解:

$3^7\times 5^2\times {\mathrm{19}}^2$

素因数の和:69

約数の個数: 72

約数和(自身を含む): 38740080

約数和(自身を除く): 19002405

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 81, 95, 135, 171, 225, 243, 285, 361, 405, 475, 513, 675, 729, 855, 1083, 1215, 1425, 1539, 1805, 2025, 2187, 2565, 3249, 3645, 4275, 4617, 5415, 6075, 7695, 9025, 9747, 10935, 12825, 13851, 16245, 18225, 23085, 27075, 29241, 38475, 41553, 48735, 54675, 69255, 81225, 87723, 115425, 146205, 207765, 243675, 263169, 346275, 438615, 731025, 789507, 1038825, 1315845, 2193075, 3947535, 6579225, 19737675]

約数ペア:

[(1, 19737675), (3, 6579225), (5, 3947535), (9, 2193075), (15, 1315845), (19, 1038825), (25, 789507), (27, 731025), (45, 438615), (57, 346275), (75, 263169), (81, 243675), (95, 207765), (135, 146205), (171, 115425), (225, 87723), (243, 81225), (285, 69255), (361, 54675), (405, 48735), (475, 41553), (513, 38475), (675, 29241), (729, 27075), (855, 23085), (1083, 18225), (1215, 16245), (1425, 13851), (1539, 12825), (1805, 10935), (2025, 9747), (2187, 9025), (2565, 7695), (3249, 6075), (3645, 5415), (4275, 4617)]