647407980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:504

約数の個数: 144

約数和(自身を含む): 2004912000

約数和(自身を除く): 1357504020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 149, 180, 202, 239, 298, 303, 404, 447, 478, 505, 596, 606, 717, 745, 894, 909, 956, 1010, 1195, 1212, 1341, 1434, 1490, 1515, 1788, 1818, 2020, 2151, 2235, 2390, 2682, 2868, 2980, 3030, 3585, 3636, 4302, 4470, 4545, 4780, 5364, 6060, 6705, 7170, 8604, 8940, 9090, 10755, 13410, 14340, 15049, 18180, 21510, 24139, 26820, 30098, 35611, 43020, 45147, 48278, 60196, 71222, 72417, 75245, 90294, 96556, 106833, 120695, 135441, 142444, 144834, 150490, 178055, 180588, 213666, 217251, 225735, 241390, 270882, 289668, 300980, 320499, 356110, 362085, 427332, 434502, 451470, 482780, 534165, 541764, 640998, 677205, 712220, 724170, 869004, 902940, 1068330, 1086255, 1281996, 1354410, 1448340, 1602495, 2136660, 2172510, 2708820, 3204990, 3596711, 4345020, 6409980, 7193422, 10790133, 14386844, 17983555, 21580266, 32370399, 35967110, 43160532, 53950665, 64740798, 71934220, 107901330, 129481596, 161851995, 215802660, 323703990, 647407980]

約数ペア:

[(1, 647407980), (2, 323703990), (3, 215802660), (4, 161851995), (5, 129481596), (6, 107901330), (9, 71934220), (10, 64740798), (12, 53950665), (15, 43160532), (18, 35967110), (20, 32370399), (30, 21580266), (36, 17983555), (45, 14386844), (60, 10790133), (90, 7193422), (101, 6409980), (149, 4345020), (180, 3596711), (202, 3204990), (239, 2708820), (298, 2172510), (303, 2136660), (404, 1602495), (447, 1448340), (478, 1354410), (505, 1281996), (596, 1086255), (606, 1068330), (717, 902940), (745, 869004), (894, 724170), (909, 712220), (956, 677205), (1010, 640998), (1195, 541764), (1212, 534165), (1341, 482780), (1434, 451470), (1490, 434502), (1515, 427332), (1788, 362085), (1818, 356110), (2020, 320499), (2151, 300980), (2235, 289668), (2390, 270882), (2682, 241390), (2868, 225735), (2980, 217251), (3030, 213666), (3585, 180588), (3636, 178055), (4302, 150490), (4470, 144834), (4545, 142444), (4780, 135441), (5364, 120695), (6060, 106833), (6705, 96556), (7170, 90294), (8604, 75245), (8940, 72417), (9090, 71222), (10755, 60196), (13410, 48278), (14340, 45147), (15049, 43020), (18180, 35611), (21510, 30098), (24139, 26820)]