20249533720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{151523}}^1$

素因数の和:151804

約数の個数: 64

約数和(自身を含む): 49257421920

約数和(自身を除く): 29007888200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 257, 260, 514, 520, 1028, 1285, 2056, 2570, 3341, 5140, 6682, 10280, 13364, 16705, 26728, 33410, 66820, 133640, 151523, 303046, 606092, 757615, 1212184, 1515230, 1969799, 3030460, 3939598, 6060920, 7879196, 9848995, 15758392, 19697990, 38941411, 39395980, 77882822, 78791960, 155765644, 194707055, 311531288, 389414110, 506238343, 778828220, 1012476686, 1557656440, 2024953372, 2531191715, 4049906744, 5062383430, 10124766860, 20249533720]

約数ペア:

[(1, 20249533720), (2, 10124766860), (4, 5062383430), (5, 4049906744), (8, 2531191715), (10, 2024953372), (13, 1557656440), (20, 1012476686), (26, 778828220), (40, 506238343), (52, 389414110), (65, 311531288), (104, 194707055), (130, 155765644), (257, 78791960), (260, 77882822), (514, 39395980), (520, 38941411), (1028, 19697990), (1285, 15758392), (2056, 9848995), (2570, 7879196), (3341, 6060920), (5140, 3939598), (6682, 3030460), (10280, 1969799), (13364, 1515230), (16705, 1212184), (26728, 757615), (33410, 606092), (66820, 303046), (133640, 151523)]