19916370

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{613}}^1$

素因数の和:664

約数の個数: 72

約数和(自身を含む): 54740556

約数和(自身を除く): 34824186

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 30, 38, 45, 57, 90, 95, 114, 171, 190, 285, 342, 361, 570, 613, 722, 855, 1083, 1226, 1710, 1805, 1839, 2166, 3065, 3249, 3610, 3678, 5415, 5517, 6130, 6498, 9195, 10830, 11034, 11647, 16245, 18390, 23294, 27585, 32490, 34941, 55170, 58235, 69882, 104823, 116470, 174705, 209646, 221293, 349410, 442586, 524115, 663879, 1048230, 1106465, 1327758, 1991637, 2212930, 3319395, 3983274, 6638790, 9958185, 19916370]

約数ペア:

[(1, 19916370), (2, 9958185), (3, 6638790), (5, 3983274), (6, 3319395), (9, 2212930), (10, 1991637), (15, 1327758), (18, 1106465), (19, 1048230), (30, 663879), (38, 524115), (45, 442586), (57, 349410), (90, 221293), (95, 209646), (114, 174705), (171, 116470), (190, 104823), (285, 69882), (342, 58235), (361, 55170), (570, 34941), (613, 32490), (722, 27585), (855, 23294), (1083, 18390), (1226, 16245), (1710, 11647), (1805, 11034), (1839, 10830), (2166, 9195), (3065, 6498), (3249, 6130), (3610, 5517), (3678, 5415)]