281580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2$

素因数の和:63

約数の個数: 72

約数和(自身を含む): 896112

約数和(自身を除く): 614532

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 26, 30, 38, 39, 52, 57, 60, 65, 76, 78, 95, 114, 130, 156, 190, 195, 228, 247, 260, 285, 361, 380, 390, 494, 570, 722, 741, 780, 988, 1083, 1140, 1235, 1444, 1482, 1805, 2166, 2470, 2964, 3610, 3705, 4332, 4693, 4940, 5415, 7220, 7410, 9386, 10830, 14079, 14820, 18772, 21660, 23465, 28158, 46930, 56316, 70395, 93860, 140790, 281580]

約数ペア:

[(1, 281580), (2, 140790), (3, 93860), (4, 70395), (5, 56316), (6, 46930), (10, 28158), (12, 23465), (13, 21660), (15, 18772), (19, 14820), (20, 14079), (26, 10830), (30, 9386), (38, 7410), (39, 7220), (52, 5415), (57, 4940), (60, 4693), (65, 4332), (76, 3705), (78, 3610), (95, 2964), (114, 2470), (130, 2166), (156, 1805), (190, 1482), (195, 1444), (228, 1235), (247, 1140), (260, 1083), (285, 988), (361, 780), (380, 741), (390, 722), (494, 570)]