28149705

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1187}}^1$

素因数の和:1246

約数の個数: 48

約数和(自身を含む): 53374464

約数和(自身を除く): 25224759

約数列:

[1, 3, 5, 9, 15, 17, 31, 45, 51, 85, 93, 153, 155, 255, 279, 465, 527, 765, 1187, 1395, 1581, 2635, 3561, 4743, 5935, 7905, 10683, 17805, 20179, 23715, 36797, 53415, 60537, 100895, 110391, 181611, 183985, 302685, 331173, 551955, 625549, 908055, 1655865, 1876647, 3127745, 5629941, 9383235, 28149705]

約数ペア:

[(1, 28149705), (3, 9383235), (5, 5629941), (9, 3127745), (15, 1876647), (17, 1655865), (31, 908055), (45, 625549), (51, 551955), (85, 331173), (93, 302685), (153, 183985), (155, 181611), (255, 110391), (279, 100895), (465, 60537), (527, 53415), (765, 36797), (1187, 23715), (1395, 20179), (1581, 17805), (2635, 10683), (3561, 7905), (4743, 5935)]