199420720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{373}}^1$

素因数の和:590

約数の個数: 80

約数和(自身を含む): 479156832

約数和(自身を除く): 279736112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 163, 164, 205, 326, 328, 373, 410, 652, 656, 746, 815, 820, 1304, 1492, 1630, 1640, 1865, 2608, 2984, 3260, 3280, 3730, 5968, 6520, 6683, 7460, 13040, 13366, 14920, 15293, 26732, 29840, 30586, 33415, 53464, 60799, 61172, 66830, 76465, 106928, 121598, 122344, 133660, 152930, 243196, 244688, 267320, 303995, 305860, 486392, 534640, 607990, 611720, 972784, 1215980, 1223440, 2431960, 2492759, 4863920, 4985518, 9971036, 12463795, 19942072, 24927590, 39884144, 49855180, 99710360, 199420720]

約数ペア:

[(1, 199420720), (2, 99710360), (4, 49855180), (5, 39884144), (8, 24927590), (10, 19942072), (16, 12463795), (20, 9971036), (40, 4985518), (41, 4863920), (80, 2492759), (82, 2431960), (163, 1223440), (164, 1215980), (205, 972784), (326, 611720), (328, 607990), (373, 534640), (410, 486392), (652, 305860), (656, 303995), (746, 267320), (815, 244688), (820, 243196), (1304, 152930), (1492, 133660), (1630, 122344), (1640, 121598), (1865, 106928), (2608, 76465), (2984, 66830), (3260, 61172), (3280, 60799), (3730, 53464), (5968, 33415), (6520, 30586), (6683, 29840), (7460, 26732), (13040, 15293), (13366, 14920)]