19463940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1523}}^1$

素因数の和:1609

約数の個数: 72

約数和(自身を含む): 59911488

約数和(自身を除く): 40447548

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 1523, 2130, 2556, 3046, 3195, 4260, 4569, 6092, 6390, 7615, 9138, 12780, 13707, 15230, 18276, 22845, 27414, 30460, 45690, 54828, 68535, 91380, 108133, 137070, 216266, 274140, 324399, 432532, 540665, 648798, 973197, 1081330, 1297596, 1621995, 1946394, 2162660, 3243990, 3892788, 4865985, 6487980, 9731970, 19463940]

約数ペア:

[(1, 19463940), (2, 9731970), (3, 6487980), (4, 4865985), (5, 3892788), (6, 3243990), (9, 2162660), (10, 1946394), (12, 1621995), (15, 1297596), (18, 1081330), (20, 973197), (30, 648798), (36, 540665), (45, 432532), (60, 324399), (71, 274140), (90, 216266), (142, 137070), (180, 108133), (213, 91380), (284, 68535), (355, 54828), (426, 45690), (639, 30460), (710, 27414), (852, 22845), (1065, 18276), (1278, 15230), (1420, 13707), (1523, 12780), (2130, 9138), (2556, 7615), (3046, 6390), (3195, 6092), (4260, 4569)]