247891140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{196739}}^1$

素因数の和:196761

約数の個数: 72

約数和(自身を含む): 859360320

約数和(自身を除く): 611469180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 196739, 393478, 590217, 786956, 983695, 1180434, 1377173, 1770651, 1967390, 2360868, 2754346, 2951085, 3541302, 3934780, 4131519, 5508692, 5902170, 6885865, 7082604, 8263038, 8853255, 11804340, 12394557, 13771730, 16526076, 17706510, 20657595, 24789114, 27543460, 35413020, 41315190, 49578228, 61972785, 82630380, 123945570, 247891140]

約数ペア:

[(1, 247891140), (2, 123945570), (3, 82630380), (4, 61972785), (5, 49578228), (6, 41315190), (7, 35413020), (9, 27543460), (10, 24789114), (12, 20657595), (14, 17706510), (15, 16526076), (18, 13771730), (20, 12394557), (21, 11804340), (28, 8853255), (30, 8263038), (35, 7082604), (36, 6885865), (42, 5902170), (45, 5508692), (60, 4131519), (63, 3934780), (70, 3541302), (84, 2951085), (90, 2754346), (105, 2360868), (126, 1967390), (140, 1770651), (180, 1377173), (210, 1180434), (252, 983695), (315, 786956), (420, 590217), (630, 393478), (1260, 196739)]