18937230

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{823}}^1$

素因数の和:905

約数の個数: 64

約数和(自身を含む): 49835520

約数和(自身を除く): 30898290

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 59, 65, 78, 118, 130, 177, 195, 295, 354, 390, 590, 767, 823, 885, 1534, 1646, 1770, 2301, 2469, 3835, 4115, 4602, 4938, 7670, 8230, 10699, 11505, 12345, 21398, 23010, 24690, 32097, 48557, 53495, 64194, 97114, 106990, 145671, 160485, 242785, 291342, 320970, 485570, 631241, 728355, 1262482, 1456710, 1893723, 3156205, 3787446, 6312410, 9468615, 18937230]

約数ペア:

[(1, 18937230), (2, 9468615), (3, 6312410), (5, 3787446), (6, 3156205), (10, 1893723), (13, 1456710), (15, 1262482), (26, 728355), (30, 631241), (39, 485570), (59, 320970), (65, 291342), (78, 242785), (118, 160485), (130, 145671), (177, 106990), (195, 97114), (295, 64194), (354, 53495), (390, 48557), (590, 32097), (767, 24690), (823, 23010), (885, 21398), (1534, 12345), (1646, 11505), (1770, 10699), (2301, 8230), (2469, 7670), (3835, 4938), (4115, 4602)]