221286680

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{7759}}^1$

素因数の和:7824

約数の個数: 64

約数和(自身を含む): 536371200

約数和(自身を除く): 315084520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 46, 62, 92, 115, 124, 155, 184, 230, 248, 310, 460, 620, 713, 920, 1240, 1426, 2852, 3565, 5704, 7130, 7759, 14260, 15518, 28520, 31036, 38795, 62072, 77590, 155180, 178457, 240529, 310360, 356914, 481058, 713828, 892285, 962116, 1202645, 1427656, 1784570, 1924232, 2405290, 3569140, 4810580, 5532167, 7138280, 9621160, 11064334, 22128668, 27660835, 44257336, 55321670, 110643340, 221286680]

約数ペア:

[(1, 221286680), (2, 110643340), (4, 55321670), (5, 44257336), (8, 27660835), (10, 22128668), (20, 11064334), (23, 9621160), (31, 7138280), (40, 5532167), (46, 4810580), (62, 3569140), (92, 2405290), (115, 1924232), (124, 1784570), (155, 1427656), (184, 1202645), (230, 962116), (248, 892285), (310, 713828), (460, 481058), (620, 356914), (713, 310360), (920, 240529), (1240, 178457), (1426, 155180), (2852, 77590), (3565, 62072), (5704, 38795), (7130, 31036), (7759, 28520), (14260, 15518)]