28825040

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1$

素因数の和:300

約数の個数: 80

約数和(自身を含む): 70709760

約数和(自身を除く): 41884720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 59, 62, 80, 118, 124, 155, 197, 236, 248, 295, 310, 394, 472, 496, 590, 620, 788, 944, 985, 1180, 1240, 1576, 1829, 1970, 2360, 2480, 3152, 3658, 3940, 4720, 6107, 7316, 7880, 9145, 11623, 12214, 14632, 15760, 18290, 23246, 24428, 29264, 30535, 36580, 46492, 48856, 58115, 61070, 73160, 92984, 97712, 116230, 122140, 146320, 185968, 232460, 244280, 360313, 464920, 488560, 720626, 929840, 1441252, 1801565, 2882504, 3603130, 5765008, 7206260, 14412520, 28825040]

約数ペア:

[(1, 28825040), (2, 14412520), (4, 7206260), (5, 5765008), (8, 3603130), (10, 2882504), (16, 1801565), (20, 1441252), (31, 929840), (40, 720626), (59, 488560), (62, 464920), (80, 360313), (118, 244280), (124, 232460), (155, 185968), (197, 146320), (236, 122140), (248, 116230), (295, 97712), (310, 92984), (394, 73160), (472, 61070), (496, 58115), (590, 48856), (620, 46492), (788, 36580), (944, 30535), (985, 29264), (1180, 24428), (1240, 23246), (1576, 18290), (1829, 15760), (1970, 14632), (2360, 12214), (2480, 11623), (3152, 9145), (3658, 7880), (3940, 7316), (4720, 6107)]