19003725

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:191

約数の個数: 72

約数和(自身を含む): 37575720

約数和(自身を除く): 18571995

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 73, 75, 89, 117, 195, 219, 225, 267, 325, 365, 445, 585, 657, 801, 949, 975, 1095, 1157, 1335, 1825, 2225, 2847, 2925, 3285, 3471, 4005, 4745, 5475, 5785, 6497, 6675, 8541, 10413, 14235, 16425, 17355, 19491, 20025, 23725, 28925, 32485, 42705, 52065, 58473, 71175, 84461, 86775, 97455, 162425, 213525, 253383, 260325, 292365, 422305, 487275, 760149, 1266915, 1461825, 2111525, 3800745, 6334575, 19003725]

約数ペア:

[(1, 19003725), (3, 6334575), (5, 3800745), (9, 2111525), (13, 1461825), (15, 1266915), (25, 760149), (39, 487275), (45, 422305), (65, 292365), (73, 260325), (75, 253383), (89, 213525), (117, 162425), (195, 97455), (219, 86775), (225, 84461), (267, 71175), (325, 58473), (365, 52065), (445, 42705), (585, 32485), (657, 28925), (801, 23725), (949, 20025), (975, 19491), (1095, 17355), (1157, 16425), (1335, 14235), (1825, 10413), (2225, 8541), (2847, 6675), (2925, 6497), (3285, 5785), (3471, 5475), (4005, 4745)]