19065540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24443}}^1$

素因数の和:24468

約数の個数: 48

約数和(自身を含む): 57492288

約数和(自身を除く): 38426748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 24443, 48886, 73329, 97772, 122215, 146658, 244430, 293316, 317759, 366645, 488860, 635518, 733290, 953277, 1271036, 1466580, 1588795, 1906554, 3177590, 3813108, 4766385, 6355180, 9532770, 19065540]

約数ペア:

[(1, 19065540), (2, 9532770), (3, 6355180), (4, 4766385), (5, 3813108), (6, 3177590), (10, 1906554), (12, 1588795), (13, 1466580), (15, 1271036), (20, 953277), (26, 733290), (30, 635518), (39, 488860), (52, 366645), (60, 317759), (65, 293316), (78, 244430), (130, 146658), (156, 122215), (195, 97772), (260, 73329), (390, 48886), (780, 24443)]