28415925

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:92

約数の個数: 108

約数和(自身を含む): 59386080

約数和(自身を除く): 30970155

約数列:

[1, 3, 5, 9, 15, 17, 19, 23, 25, 45, 51, 57, 69, 75, 85, 95, 115, 153, 171, 207, 225, 255, 285, 289, 323, 345, 391, 425, 437, 475, 575, 765, 855, 867, 969, 1035, 1173, 1275, 1311, 1425, 1445, 1615, 1725, 1955, 2185, 2601, 2907, 3519, 3825, 3933, 4275, 4335, 4845, 5175, 5491, 5865, 6555, 6647, 7225, 7429, 8075, 9775, 10925, 13005, 14535, 16473, 17595, 19665, 19941, 21675, 22287, 24225, 27455, 29325, 32775, 33235, 37145, 49419, 59823, 65025, 66861, 72675, 82365, 87975, 98325, 99705, 111435, 126293, 137275, 166175, 185725, 247095, 299115, 334305, 378879, 411825, 498525, 557175, 631465, 1136637, 1235475, 1495575, 1671525, 1894395, 3157325, 5683185, 9471975, 28415925]

約数ペア:

[(1, 28415925), (3, 9471975), (5, 5683185), (9, 3157325), (15, 1894395), (17, 1671525), (19, 1495575), (23, 1235475), (25, 1136637), (45, 631465), (51, 557175), (57, 498525), (69, 411825), (75, 378879), (85, 334305), (95, 299115), (115, 247095), (153, 185725), (171, 166175), (207, 137275), (225, 126293), (255, 111435), (285, 99705), (289, 98325), (323, 87975), (345, 82365), (391, 72675), (425, 66861), (437, 65025), (475, 59823), (575, 49419), (765, 37145), (855, 33235), (867, 32775), (969, 29325), (1035, 27455), (1173, 24225), (1275, 22287), (1311, 21675), (1425, 19941), (1445, 19665), (1615, 17595), (1725, 16473), (1955, 14535), (2185, 13005), (2601, 10925), (2907, 9775), (3519, 8075), (3825, 7429), (3933, 7225), (4275, 6647), (4335, 6555), (4845, 5865), (5175, 5491)]