420930400

素因数分解:

$2^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1543}}^1$

素因数の和:1605

約数の個数: 144

約数和(自身を含む): 1157925888

約数和(自身を除く): 736995488

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 31, 32, 40, 44, 50, 55, 62, 80, 88, 100, 110, 124, 155, 160, 176, 200, 220, 248, 275, 310, 341, 352, 400, 440, 496, 550, 620, 682, 775, 800, 880, 992, 1100, 1240, 1364, 1543, 1550, 1705, 1760, 2200, 2480, 2728, 3086, 3100, 3410, 4400, 4960, 5456, 6172, 6200, 6820, 7715, 8525, 8800, 10912, 12344, 12400, 13640, 15430, 16973, 17050, 24688, 24800, 27280, 30860, 33946, 34100, 38575, 47833, 49376, 54560, 61720, 67892, 68200, 77150, 84865, 95666, 123440, 135784, 136400, 154300, 169730, 191332, 239165, 246880, 271568, 272800, 308600, 339460, 382664, 424325, 478330, 526163, 543136, 617200, 678920, 765328, 848650, 956660, 1052326, 1195825, 1234400, 1357840, 1530656, 1697300, 1913320, 2104652, 2391650, 2630815, 2715680, 3394600, 3826640, 4209304, 4783300, 5261630, 6789200, 7653280, 8418608, 9566600, 10523260, 13154075, 13578400, 16837216, 19133200, 21046520, 26308150, 38266400, 42093040, 52616300, 84186080, 105232600, 210465200, 420930400]

約数ペア:

[(1, 420930400), (2, 210465200), (4, 105232600), (5, 84186080), (8, 52616300), (10, 42093040), (11, 38266400), (16, 26308150), (20, 21046520), (22, 19133200), (25, 16837216), (31, 13578400), (32, 13154075), (40, 10523260), (44, 9566600), (50, 8418608), (55, 7653280), (62, 6789200), (80, 5261630), (88, 4783300), (100, 4209304), (110, 3826640), (124, 3394600), (155, 2715680), (160, 2630815), (176, 2391650), (200, 2104652), (220, 1913320), (248, 1697300), (275, 1530656), (310, 1357840), (341, 1234400), (352, 1195825), (400, 1052326), (440, 956660), (496, 848650), (550, 765328), (620, 678920), (682, 617200), (775, 543136), (800, 526163), (880, 478330), (992, 424325), (1100, 382664), (1240, 339460), (1364, 308600), (1543, 272800), (1550, 271568), (1705, 246880), (1760, 239165), (2200, 191332), (2480, 169730), (2728, 154300), (3086, 136400), (3100, 135784), (3410, 123440), (4400, 95666), (4960, 84865), (5456, 77150), (6172, 68200), (6200, 67892), (6820, 61720), (7715, 54560), (8525, 49376), (8800, 47833), (10912, 38575), (12344, 34100), (12400, 33946), (13640, 30860), (15430, 27280), (16973, 24800), (17050, 24688)]