20868588

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:144

約数の個数: 144

約数和(自身を含む): 62558496

約数和(自身を除く): 41689908

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 39, 43, 51, 52, 61, 68, 78, 86, 102, 117, 122, 129, 153, 156, 172, 183, 204, 221, 234, 244, 258, 306, 366, 387, 442, 468, 516, 549, 559, 612, 663, 731, 732, 774, 793, 884, 1037, 1098, 1118, 1326, 1462, 1548, 1586, 1677, 1989, 2074, 2193, 2196, 2236, 2379, 2623, 2652, 2924, 3111, 3172, 3354, 3978, 4148, 4386, 4758, 5031, 5246, 6222, 6579, 6708, 7137, 7869, 7956, 8772, 9333, 9503, 9516, 10062, 10492, 12444, 13158, 13481, 14274, 15738, 18666, 19006, 20124, 23607, 26316, 26962, 28509, 28548, 31476, 34099, 37332, 38012, 40443, 44591, 47214, 53924, 57018, 68198, 80886, 85527, 89182, 94428, 102297, 114036, 121329, 133773, 136396, 161772, 171054, 178364, 204594, 242658, 267546, 306891, 342108, 401319, 409188, 485316, 535092, 579683, 613782, 802638, 1159366, 1227564, 1605276, 1739049, 2318732, 3478098, 5217147, 6956196, 10434294, 20868588]

約数ペア:

[(1, 20868588), (2, 10434294), (3, 6956196), (4, 5217147), (6, 3478098), (9, 2318732), (12, 1739049), (13, 1605276), (17, 1227564), (18, 1159366), (26, 802638), (34, 613782), (36, 579683), (39, 535092), (43, 485316), (51, 409188), (52, 401319), (61, 342108), (68, 306891), (78, 267546), (86, 242658), (102, 204594), (117, 178364), (122, 171054), (129, 161772), (153, 136396), (156, 133773), (172, 121329), (183, 114036), (204, 102297), (221, 94428), (234, 89182), (244, 85527), (258, 80886), (306, 68198), (366, 57018), (387, 53924), (442, 47214), (468, 44591), (516, 40443), (549, 38012), (559, 37332), (612, 34099), (663, 31476), (731, 28548), (732, 28509), (774, 26962), (793, 26316), (884, 23607), (1037, 20124), (1098, 19006), (1118, 18666), (1326, 15738), (1462, 14274), (1548, 13481), (1586, 13158), (1677, 12444), (1989, 10492), (2074, 10062), (2193, 9516), (2196, 9503), (2236, 9333), (2379, 8772), (2623, 7956), (2652, 7869), (2924, 7137), (3111, 6708), (3172, 6579), (3354, 6222), (3978, 5246), (4148, 5031), (4386, 4758)]