64491700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{373}}^1$

素因数の和:426

約数の個数: 144

約数和(自身を含む): 181793920

約数和(自身を除く): 117302220

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 25, 26, 28, 35, 38, 50, 52, 65, 70, 76, 91, 95, 100, 130, 133, 140, 175, 182, 190, 247, 260, 266, 325, 350, 364, 373, 380, 455, 475, 494, 532, 650, 665, 700, 746, 910, 950, 988, 1235, 1300, 1330, 1492, 1729, 1820, 1865, 1900, 2275, 2470, 2611, 2660, 3325, 3458, 3730, 4550, 4849, 4940, 5222, 6175, 6650, 6916, 7087, 7460, 8645, 9100, 9325, 9698, 10444, 12350, 13055, 13300, 14174, 17290, 18650, 19396, 24245, 24700, 26110, 28348, 33943, 34580, 35435, 37300, 43225, 48490, 49609, 52220, 65275, 67886, 70870, 86450, 92131, 96980, 99218, 121225, 130550, 135772, 141740, 169715, 172900, 177175, 184262, 198436, 242450, 248045, 261100, 339430, 354350, 368524, 460655, 484900, 496090, 644917, 678860, 708700, 848575, 921310, 992180, 1240225, 1289834, 1697150, 1842620, 2303275, 2480450, 2579668, 3224585, 3394300, 4606550, 4960900, 6449170, 9213100, 12898340, 16122925, 32245850, 64491700]

約数ペア:

[(1, 64491700), (2, 32245850), (4, 16122925), (5, 12898340), (7, 9213100), (10, 6449170), (13, 4960900), (14, 4606550), (19, 3394300), (20, 3224585), (25, 2579668), (26, 2480450), (28, 2303275), (35, 1842620), (38, 1697150), (50, 1289834), (52, 1240225), (65, 992180), (70, 921310), (76, 848575), (91, 708700), (95, 678860), (100, 644917), (130, 496090), (133, 484900), (140, 460655), (175, 368524), (182, 354350), (190, 339430), (247, 261100), (260, 248045), (266, 242450), (325, 198436), (350, 184262), (364, 177175), (373, 172900), (380, 169715), (455, 141740), (475, 135772), (494, 130550), (532, 121225), (650, 99218), (665, 96980), (700, 92131), (746, 86450), (910, 70870), (950, 67886), (988, 65275), (1235, 52220), (1300, 49609), (1330, 48490), (1492, 43225), (1729, 37300), (1820, 35435), (1865, 34580), (1900, 33943), (2275, 28348), (2470, 26110), (2611, 24700), (2660, 24245), (3325, 19396), (3458, 18650), (3730, 17290), (4550, 14174), (4849, 13300), (4940, 13055), (5222, 12350), (6175, 10444), (6650, 9698), (6916, 9325), (7087, 9100), (7460, 8645)]