30903880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:231

約数の個数: 128

約数和(自身を含む): 86457600

約数和(自身を除く): 55553720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 37, 38, 40, 56, 70, 74, 76, 95, 133, 140, 148, 152, 157, 185, 190, 259, 266, 280, 296, 314, 370, 380, 518, 532, 628, 665, 703, 740, 760, 785, 1036, 1064, 1099, 1256, 1295, 1330, 1406, 1480, 1570, 2072, 2198, 2590, 2660, 2812, 2983, 3140, 3515, 4396, 4921, 5180, 5320, 5495, 5624, 5809, 5966, 6280, 7030, 8792, 9842, 10360, 10990, 11618, 11932, 14060, 14915, 19684, 20881, 21980, 23236, 23864, 24605, 28120, 29045, 29830, 39368, 40663, 41762, 43960, 46472, 49210, 58090, 59660, 81326, 83524, 98420, 104405, 110371, 116180, 119320, 162652, 167048, 196840, 203315, 208810, 220742, 232360, 325304, 406630, 417620, 441484, 551855, 772597, 813260, 835240, 882968, 1103710, 1545194, 1626520, 2207420, 3090388, 3862985, 4414840, 6180776, 7725970, 15451940, 30903880]

約数ペア:

[(1, 30903880), (2, 15451940), (4, 7725970), (5, 6180776), (7, 4414840), (8, 3862985), (10, 3090388), (14, 2207420), (19, 1626520), (20, 1545194), (28, 1103710), (35, 882968), (37, 835240), (38, 813260), (40, 772597), (56, 551855), (70, 441484), (74, 417620), (76, 406630), (95, 325304), (133, 232360), (140, 220742), (148, 208810), (152, 203315), (157, 196840), (185, 167048), (190, 162652), (259, 119320), (266, 116180), (280, 110371), (296, 104405), (314, 98420), (370, 83524), (380, 81326), (518, 59660), (532, 58090), (628, 49210), (665, 46472), (703, 43960), (740, 41762), (760, 40663), (785, 39368), (1036, 29830), (1064, 29045), (1099, 28120), (1256, 24605), (1295, 23864), (1330, 23236), (1406, 21980), (1480, 20881), (1570, 19684), (2072, 14915), (2198, 14060), (2590, 11932), (2660, 11618), (2812, 10990), (2983, 10360), (3140, 9842), (3515, 8792), (4396, 7030), (4921, 6280), (5180, 5966), (5320, 5809), (5495, 5624)]