19902330

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{4513}}^1$

素因数の和:4540

約数の個数: 72

約数和(自身を含む): 60207732

約数和(自身を除く): 40305402

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 4513, 9026, 13539, 22565, 27078, 31591, 40617, 45130, 63182, 67695, 81234, 94773, 135390, 157955, 189546, 203085, 221137, 284319, 315910, 406170, 442274, 473865, 568638, 663411, 947730, 1105685, 1326822, 1421595, 1990233, 2211370, 2843190, 3317055, 3980466, 6634110, 9951165, 19902330]

約数ペア:

[(1, 19902330), (2, 9951165), (3, 6634110), (5, 3980466), (6, 3317055), (7, 2843190), (9, 2211370), (10, 1990233), (14, 1421595), (15, 1326822), (18, 1105685), (21, 947730), (30, 663411), (35, 568638), (42, 473865), (45, 442274), (49, 406170), (63, 315910), (70, 284319), (90, 221137), (98, 203085), (105, 189546), (126, 157955), (147, 135390), (210, 94773), (245, 81234), (294, 67695), (315, 63182), (441, 45130), (490, 40617), (630, 31591), (735, 27078), (882, 22565), (1470, 13539), (2205, 9026), (4410, 4513)]