20633860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1301}}^1$

素因数の和:1384

約数の個数: 48

約数和(自身を含む): 47465712

約数和(自身を除く): 26831852

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1301, 1586, 2602, 3172, 3965, 5204, 6505, 7930, 13010, 15860, 16913, 26020, 33826, 67652, 79361, 84565, 158722, 169130, 317444, 338260, 396805, 793610, 1031693, 1587220, 2063386, 4126772, 5158465, 10316930, 20633860]

約数ペア:

[(1, 20633860), (2, 10316930), (4, 5158465), (5, 4126772), (10, 2063386), (13, 1587220), (20, 1031693), (26, 793610), (52, 396805), (61, 338260), (65, 317444), (122, 169130), (130, 158722), (244, 84565), (260, 79361), (305, 67652), (610, 33826), (793, 26020), (1220, 16913), (1301, 15860), (1586, 13010), (2602, 7930), (3172, 6505), (3965, 5204)]