687218940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{53773}}^1$

素因数の和:53859

約数の個数: 72

約数和(自身を含む): 2113963488

約数和(自身を除く): 1426744548

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, 2130, 2556, 3195, 4260, 6390, 12780, 53773, 107546, 161319, 215092, 268865, 322638, 483957, 537730, 645276, 806595, 967914, 1075460, 1613190, 1935828, 2419785, 3226380, 3817883, 4839570, 7635766, 9679140, 11453649, 15271532, 19089415, 22907298, 34360947, 38178830, 45814596, 57268245, 68721894, 76357660, 114536490, 137443788, 171804735, 229072980, 343609470, 687218940]

約数ペア:

[(1, 687218940), (2, 343609470), (3, 229072980), (4, 171804735), (5, 137443788), (6, 114536490), (9, 76357660), (10, 68721894), (12, 57268245), (15, 45814596), (18, 38178830), (20, 34360947), (30, 22907298), (36, 19089415), (45, 15271532), (60, 11453649), (71, 9679140), (90, 7635766), (142, 4839570), (180, 3817883), (213, 3226380), (284, 2419785), (355, 1935828), (426, 1613190), (639, 1075460), (710, 967914), (852, 806595), (1065, 645276), (1278, 537730), (1420, 483957), (2130, 322638), (2556, 268865), (3195, 215092), (4260, 161319), (6390, 107546), (12780, 53773)]