42420400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1$

素因数の和:371

約数の個数: 120

約数和(自身を含む): 115135488

約数和(自身を除く): 72715088

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 31, 40, 44, 50, 55, 62, 80, 88, 100, 110, 124, 155, 176, 200, 220, 248, 275, 310, 311, 341, 400, 440, 496, 550, 620, 622, 682, 775, 880, 1100, 1240, 1244, 1364, 1550, 1555, 1705, 2200, 2480, 2488, 2728, 3100, 3110, 3410, 3421, 4400, 4976, 5456, 6200, 6220, 6820, 6842, 7775, 8525, 9641, 12400, 12440, 13640, 13684, 15550, 17050, 17105, 19282, 24880, 27280, 27368, 31100, 34100, 34210, 38564, 48205, 54736, 62200, 68200, 68420, 77128, 85525, 96410, 106051, 124400, 136400, 136840, 154256, 171050, 192820, 212102, 241025, 273680, 342100, 385640, 424204, 482050, 530255, 684200, 771280, 848408, 964100, 1060510, 1368400, 1696816, 1928200, 2121020, 2651275, 3856400, 4242040, 5302550, 8484080, 10605100, 21210200, 42420400]

約数ペア:

[(1, 42420400), (2, 21210200), (4, 10605100), (5, 8484080), (8, 5302550), (10, 4242040), (11, 3856400), (16, 2651275), (20, 2121020), (22, 1928200), (25, 1696816), (31, 1368400), (40, 1060510), (44, 964100), (50, 848408), (55, 771280), (62, 684200), (80, 530255), (88, 482050), (100, 424204), (110, 385640), (124, 342100), (155, 273680), (176, 241025), (200, 212102), (220, 192820), (248, 171050), (275, 154256), (310, 136840), (311, 136400), (341, 124400), (400, 106051), (440, 96410), (496, 85525), (550, 77128), (620, 68420), (622, 68200), (682, 62200), (775, 54736), (880, 48205), (1100, 38564), (1240, 34210), (1244, 34100), (1364, 31100), (1550, 27368), (1555, 27280), (1705, 24880), (2200, 19282), (2480, 17105), (2488, 17050), (2728, 15550), (3100, 13684), (3110, 13640), (3410, 12440), (3421, 12400), (4400, 9641), (4976, 8525), (5456, 7775), (6200, 6842), (6220, 6820)]