209970540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1471}}^1$

素因数の和:1560

約数の個数: 144

約数和(自身を含む): 697622016

約数和(自身を除く): 487651476

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 61, 65, 78, 90, 117, 122, 130, 156, 180, 183, 195, 234, 244, 260, 305, 366, 390, 468, 549, 585, 610, 732, 780, 793, 915, 1098, 1170, 1220, 1471, 1586, 1830, 2196, 2340, 2379, 2745, 2942, 3172, 3660, 3965, 4413, 4758, 5490, 5884, 7137, 7355, 7930, 8826, 9516, 10980, 11895, 13239, 14274, 14710, 15860, 17652, 19123, 22065, 23790, 26478, 28548, 29420, 35685, 38246, 44130, 47580, 52956, 57369, 66195, 71370, 76492, 88260, 89731, 95615, 114738, 132390, 142740, 172107, 179462, 191230, 229476, 264780, 269193, 286845, 344214, 358924, 382460, 448655, 538386, 573690, 688428, 807579, 860535, 897310, 1076772, 1147380, 1166503, 1345965, 1615158, 1721070, 1794620, 2333006, 2691930, 3230316, 3442140, 3499509, 4037895, 4666012, 5383860, 5832515, 6999018, 8075790, 10498527, 11665030, 13998036, 16151580, 17497545, 20997054, 23330060, 34995090, 41994108, 52492635, 69990180, 104985270, 209970540]

約数ペア:

[(1, 209970540), (2, 104985270), (3, 69990180), (4, 52492635), (5, 41994108), (6, 34995090), (9, 23330060), (10, 20997054), (12, 17497545), (13, 16151580), (15, 13998036), (18, 11665030), (20, 10498527), (26, 8075790), (30, 6999018), (36, 5832515), (39, 5383860), (45, 4666012), (52, 4037895), (60, 3499509), (61, 3442140), (65, 3230316), (78, 2691930), (90, 2333006), (117, 1794620), (122, 1721070), (130, 1615158), (156, 1345965), (180, 1166503), (183, 1147380), (195, 1076772), (234, 897310), (244, 860535), (260, 807579), (305, 688428), (366, 573690), (390, 538386), (468, 448655), (549, 382460), (585, 358924), (610, 344214), (732, 286845), (780, 269193), (793, 264780), (915, 229476), (1098, 191230), (1170, 179462), (1220, 172107), (1471, 142740), (1586, 132390), (1830, 114738), (2196, 95615), (2340, 89731), (2379, 88260), (2745, 76492), (2942, 71370), (3172, 66195), (3660, 57369), (3965, 52956), (4413, 47580), (4758, 44130), (5490, 38246), (5884, 35685), (7137, 29420), (7355, 28548), (7930, 26478), (8826, 23790), (9516, 22065), (10980, 19123), (11895, 17652), (13239, 15860), (14274, 14710)]