20417850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{17}}^2\times {\mathrm{157}}^1$

素因数の和:209

約数の個数: 108

約数和(自身を含む): 58643754

約数和(自身を除く): 38225904

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 25, 30, 34, 45, 50, 51, 75, 85, 90, 102, 150, 153, 157, 170, 225, 255, 289, 306, 314, 425, 450, 471, 510, 578, 765, 785, 850, 867, 942, 1275, 1413, 1445, 1530, 1570, 1734, 2355, 2550, 2601, 2669, 2826, 2890, 3825, 3925, 4335, 4710, 5202, 5338, 7065, 7225, 7650, 7850, 8007, 8670, 11775, 13005, 13345, 14130, 14450, 16014, 21675, 23550, 24021, 26010, 26690, 35325, 40035, 43350, 45373, 48042, 65025, 66725, 70650, 80070, 90746, 120105, 130050, 133450, 136119, 200175, 226865, 240210, 272238, 400350, 408357, 453730, 600525, 680595, 816714, 1134325, 1201050, 1361190, 2041785, 2268650, 3402975, 4083570, 6805950, 10208925, 20417850]

約数ペア:

[(1, 20417850), (2, 10208925), (3, 6805950), (5, 4083570), (6, 3402975), (9, 2268650), (10, 2041785), (15, 1361190), (17, 1201050), (18, 1134325), (25, 816714), (30, 680595), (34, 600525), (45, 453730), (50, 408357), (51, 400350), (75, 272238), (85, 240210), (90, 226865), (102, 200175), (150, 136119), (153, 133450), (157, 130050), (170, 120105), (225, 90746), (255, 80070), (289, 70650), (306, 66725), (314, 65025), (425, 48042), (450, 45373), (471, 43350), (510, 40035), (578, 35325), (765, 26690), (785, 26010), (850, 24021), (867, 23550), (942, 21675), (1275, 16014), (1413, 14450), (1445, 14130), (1530, 13345), (1570, 13005), (1734, 11775), (2355, 8670), (2550, 8007), (2601, 7850), (2669, 7650), (2826, 7225), (2890, 7065), (3825, 5338), (3925, 5202), (4335, 4710)]