19281990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1009}}^1$

素因数の和:1046

約数の個数: 96

約数和(自身を含む): 58030560

約数和(自身を除く): 38748570

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 49, 65, 70, 78, 91, 98, 105, 130, 147, 182, 195, 210, 245, 273, 294, 390, 455, 490, 546, 637, 735, 910, 1009, 1274, 1365, 1470, 1911, 2018, 2730, 3027, 3185, 3822, 5045, 6054, 6370, 7063, 9555, 10090, 13117, 14126, 15135, 19110, 21189, 26234, 30270, 35315, 39351, 42378, 49441, 65585, 70630, 78702, 91819, 98882, 105945, 131170, 148323, 183638, 196755, 211890, 247205, 275457, 296646, 393510, 459095, 494410, 550914, 642733, 741615, 918190, 1285466, 1377285, 1483230, 1928199, 2754570, 3213665, 3856398, 6427330, 9640995, 19281990]

約数ペア:

[(1, 19281990), (2, 9640995), (3, 6427330), (5, 3856398), (6, 3213665), (7, 2754570), (10, 1928199), (13, 1483230), (14, 1377285), (15, 1285466), (21, 918190), (26, 741615), (30, 642733), (35, 550914), (39, 494410), (42, 459095), (49, 393510), (65, 296646), (70, 275457), (78, 247205), (91, 211890), (98, 196755), (105, 183638), (130, 148323), (147, 131170), (182, 105945), (195, 98882), (210, 91819), (245, 78702), (273, 70630), (294, 65585), (390, 49441), (455, 42378), (490, 39351), (546, 35315), (637, 30270), (735, 26234), (910, 21189), (1009, 19110), (1274, 15135), (1365, 14126), (1470, 13117), (1911, 10090), (2018, 9555), (2730, 7063), (3027, 6370), (3185, 6054), (3822, 5045)]