201780280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{2243}}^1$

素因数の和:2440

約数の個数: 64

約数和(自身を含む): 491974560

約数和(自身を除く): 290194280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 173, 260, 346, 520, 692, 865, 1384, 1730, 2243, 2249, 3460, 4486, 4498, 6920, 8972, 8996, 11215, 11245, 17944, 17992, 22430, 22490, 29159, 44860, 44980, 58318, 89720, 89960, 116636, 145795, 233272, 291590, 388039, 583180, 776078, 1166360, 1552156, 1940195, 3104312, 3880390, 5044507, 7760780, 10089014, 15521560, 20178028, 25222535, 40356056, 50445070, 100890140, 201780280]

約数ペア:

[(1, 201780280), (2, 100890140), (4, 50445070), (5, 40356056), (8, 25222535), (10, 20178028), (13, 15521560), (20, 10089014), (26, 7760780), (40, 5044507), (52, 3880390), (65, 3104312), (104, 1940195), (130, 1552156), (173, 1166360), (260, 776078), (346, 583180), (520, 388039), (692, 291590), (865, 233272), (1384, 145795), (1730, 116636), (2243, 89960), (2249, 89720), (3460, 58318), (4486, 44980), (4498, 44860), (6920, 29159), (8972, 22490), (8996, 22430), (11215, 17992), (11245, 17944)]