15385725

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 29983200

約数和(自身を除く): 14597475

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 59, 61, 75, 95, 171, 177, 183, 225, 285, 295, 305, 475, 531, 549, 855, 885, 915, 1121, 1159, 1425, 1475, 1525, 2655, 2745, 3363, 3477, 3599, 4275, 4425, 4575, 5605, 5795, 10089, 10431, 10797, 13275, 13725, 16815, 17385, 17995, 28025, 28975, 32391, 50445, 52155, 53985, 68381, 84075, 86925, 89975, 161955, 205143, 252225, 260775, 269925, 341905, 615429, 809775, 1025715, 1709525, 3077145, 5128575, 15385725]

約数ペア:

[(1, 15385725), (3, 5128575), (5, 3077145), (9, 1709525), (15, 1025715), (19, 809775), (25, 615429), (45, 341905), (57, 269925), (59, 260775), (61, 252225), (75, 205143), (95, 161955), (171, 89975), (177, 86925), (183, 84075), (225, 68381), (285, 53985), (295, 52155), (305, 50445), (475, 32391), (531, 28975), (549, 28025), (855, 17995), (885, 17385), (915, 16815), (1121, 13725), (1159, 13275), (1425, 10797), (1475, 10431), (1525, 10089), (2655, 5795), (2745, 5605), (3363, 4575), (3477, 4425), (3599, 4275)]