28660275

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{587}}^1$

素因数の和:641

約数の個数: 72

約数和(自身を含む): 60662784

約数和(自身を除く): 32002509

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 31, 35, 45, 63, 75, 93, 105, 155, 175, 217, 225, 279, 315, 465, 525, 587, 651, 775, 1085, 1395, 1575, 1761, 1953, 2325, 2935, 3255, 4109, 5283, 5425, 6975, 8805, 9765, 12327, 14675, 16275, 18197, 20545, 26415, 36981, 44025, 48825, 54591, 61635, 90985, 102725, 127379, 132075, 163773, 184905, 272955, 308175, 382137, 454925, 636895, 818865, 924525, 1146411, 1364775, 1910685, 3184475, 4094325, 5732055, 9553425, 28660275]

約数ペア:

[(1, 28660275), (3, 9553425), (5, 5732055), (7, 4094325), (9, 3184475), (15, 1910685), (21, 1364775), (25, 1146411), (31, 924525), (35, 818865), (45, 636895), (63, 454925), (75, 382137), (93, 308175), (105, 272955), (155, 184905), (175, 163773), (217, 132075), (225, 127379), (279, 102725), (315, 90985), (465, 61635), (525, 54591), (587, 48825), (651, 44025), (775, 36981), (1085, 26415), (1395, 20545), (1575, 18197), (1761, 16275), (1953, 14675), (2325, 12327), (2935, 9765), (3255, 8805), (4109, 6975), (5283, 5425)]