989828450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{49123}}^1$

素因数の和:49179

約数の個数: 48

約数和(自身を含む): 2046702336

約数和(自身を除く): 1056873886

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1550, 2015, 4030, 10075, 20150, 49123, 98246, 245615, 491230, 638599, 1228075, 1277198, 1522813, 2456150, 3045626, 3192995, 6385990, 7614065, 15228130, 15964975, 19796569, 31929950, 38070325, 39593138, 76140650, 98982845, 197965690, 494914225, 989828450]

約数ペア:

[(1, 989828450), (2, 494914225), (5, 197965690), (10, 98982845), (13, 76140650), (25, 39593138), (26, 38070325), (31, 31929950), (50, 19796569), (62, 15964975), (65, 15228130), (130, 7614065), (155, 6385990), (310, 3192995), (325, 3045626), (403, 2456150), (650, 1522813), (775, 1277198), (806, 1228075), (1550, 638599), (2015, 491230), (4030, 245615), (10075, 98246), (20150, 49123)]