18696990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{251}}^1$

素因数の和:465

約数の個数: 64

約数和(自身を含む): 48771072

約数和(自身を除く): 30074082

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 191, 195, 251, 382, 390, 502, 573, 753, 955, 1146, 1255, 1506, 1910, 2483, 2510, 2865, 3263, 3765, 4966, 5730, 6526, 7449, 7530, 9789, 12415, 14898, 16315, 19578, 24830, 32630, 37245, 47941, 48945, 74490, 95882, 97890, 143823, 239705, 287646, 479410, 623233, 719115, 1246466, 1438230, 1869699, 3116165, 3739398, 6232330, 9348495, 18696990]

約数ペア:

[(1, 18696990), (2, 9348495), (3, 6232330), (5, 3739398), (6, 3116165), (10, 1869699), (13, 1438230), (15, 1246466), (26, 719115), (30, 623233), (39, 479410), (65, 287646), (78, 239705), (130, 143823), (191, 97890), (195, 95882), (251, 74490), (382, 48945), (390, 47941), (502, 37245), (573, 32630), (753, 24830), (955, 19578), (1146, 16315), (1255, 14898), (1506, 12415), (1910, 9789), (2483, 7530), (2510, 7449), (2865, 6526), (3263, 5730), (3765, 4966)]